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Tempest Weather System with Built-in Wind Meter, Rain Gauge, and Accurate Weather Forecasts, Wireless, App and Alexa Enabled
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Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
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Purchase options and add-ons
Brand | WeatherFlow |
Power Source | Solar,Corded Electric |
Number of Batteries | 1 Lithium Ion batteries required. (included) |
Style | Modern |
Color | White |
Product Dimensions | 4.19"D x 8.25"W x 8.5"H |
Are Batteries Included | Yes |
Item Weight | 3.1 Pounds |
About this item
- As featured in the Wall Street Journal, CBS Innovation Nation, Bob Villa and Wired, Tempest reports temperature, solar radiation and UV, humidity, barometric pressure, wind speed and direction, dew point, lightning strikes, rainfall and more.
- Solar-powered outdoor sensor with wireless transmission to hub up to 1000+ ft and updates every three seconds.
- No moving parts, nearly zero maintenance, instant online access via AI-powered app, personal weather webpage, and direct link to Weather Underground. Installation in minutes – Downloadable User Guide and Installation Manual listed under Product Information section.
- Uses WeatherFlow’s advanced machine learning to continuously fine-tune your weather station’s accuracy for a better local forecast over time.
- Share your Tempest dashboard with friends and family with a special web page. Link your data to dozens of smart home apps & integrations. Or build your own app with the Tempest API.
- The Tempest app will walk you through a few simple steps, including connecting your home’s WiFi network. Once you’re up and running the app will quickly become your go-to for real-time weather conditions, lightning and rain alerts, and the most accurate forecast for your location. And now with the Apple Watch App, your weather information is available at a glance. Add Tempest Weather to your Apple watch face complications.
- Data available in the Tempest app includes: Temp, humidity, dew point, feels like, heat index Barometric pressure, sea-level pressure, trends Lightning detection and alerts up to 40 km Wind, UV, solar irradiance Rain rate, accumulation, rain onset alerts 10-day forecast Historical weather data graphs
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Product details
- Package Dimensions : 10.75 x 6.38 x 6.18 inches; 3.1 Pounds
- Item model number : 2020
- Batteries : 1 Lithium Ion batteries required. (included)
- Date First Available : March 18, 2020
- Manufacturer : WeatherFlow
- ASIN : B0868WY7NY
- Best Sellers Rank: #12,252 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
- #20 in Weather Stations
- Customer Reviews:
Important information
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Product Description
More than hardware, the meticulously designed Tempest Weather System leverages our patented Nearcast Technology, a combination of curated weather data sets, machine learning, and state-of-the-art modeling capabilities. The result is a more accurate local forecast that only gets better over time. A revolutionary design with no moving parts, nearly zero maintenance, instant online data, and a rich API powering a growing list of third-party applications. Save time and money with smart home integrations, and protect your family and property with instant alerts to warn of rain, lightning, wind, and much more. Install the Tempest home weather system in less than five minutes, and it will do the rest!
Tempest Features Include:
- Outdoor temp, humidity, dew point, feels like temp.
- Wind speed, wind direction, average & gusts
- Lightning activity (strikes and distance up to 25 miles)
- Rain onset, intensity, duration, and accumulation
- Wind chill, wet bulb temp, DeltaT, Air Density
- UV index, brightness, solar radiation
- Auto-calibration with Continuous Learning technology
- Long-range wireless connectivity (1000ft)
- Free iOS and Android apps & personal weather page
- Works with Alexa, IFTTT, and more
- Direct Rachio integration (code available via WeatherFlow support)
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A Better Forecast For Your LocationOur patented Nearcast Technology uses machine learning to compare your live station data against trusted data sources to ensure your station never drifts out of calibration. AI and data science techniques are used to improve the forecast for your exact location. No more guessing! |
A Weather Station So Advanced, It’s SimpleA revolutionary design with no moving parts, nearly zero maintenance, instant online data, a free personal webpage, and a rich API powering a growing list of third-party applications. Fully solar-powered, install the Tempest home weather system in less than five minutes. |
Turn Your Smart Home Into a GeniusUse your weather data to save on heating and cooling, optimize your smart sprinkler controller, alert your family to approaching storms, and more. Tempest is compatible with Rachio, IFTTT, Siri, Alexa, Homey, and many more. |
WeatherFlow's Commitment to YouWe stand behind our products and the technology that powers them. Each Tempest comes with a 60-day return policy, and if you aren't blown away by the better forecast in the first 2 months, simply return it. Enjoy stress-free shopping with a company committed to customer happiness. |
Here are just some of the ways to use weather observation and forecast data from the Tempest System with your smart home:
- Adjust your irrigation schedule based on the rain that's fallen... or the rain that's forecast to fall
- Turn on attic exhaust fans if the temperature is high
- Turn on ceiling fans if the temperature is high
- Turn on whole house attic fan & turn off the AC if the outside temperature is cooler than inside
- Turn on outside accent lighting when light level falls below a set limit
- Turn on an engine block heater on work days when the outside temperature is close to freezing
- Adjust heating/cooling levels based on the temperature and humidity forecast
- Adjust indoor lighting levels based on outdoor sunlight levels
- Adjust awning and shade positions based on ambient light, solar radiation, wind, etc
In addition to direct integration with your smart home systems, there's also a growing list of devices and software that let you do all sorts of things with the data from your Tempest System. The WeatherFlow Tempest System exposes a collection of self-service APIs and documentation that make it easy for developers to build apps and integrations that access data on behalf of a Tempest station owner. With both remote access (via REST & Web Socket) and local access (via Bluetooth Low Energy, UDP Broadcast).
Tempest Specs
Air Temperature | -40°F to 140° F |
Relative Humidity | 0-100% |
Atmospheric Pressure | Up to 1100 mbar |
Lightning Activity | Detects lightning 0 to 25 miles away |
Wireless | Up to 1000 ft |
Wind Speed | 0 to 100 mph |
Wind Direction | 0 to 359° |
Ambient Light | 1 to 128 kLUX |
UV Index | 0 to 14 Index |
Solar Irradiance | 0 to 1900 W/m2 |
Rain Onset | First Drops |
Rain Duration | Daily total |
Rain Accumulation | Daily total |
Mount | Adjustable pole mount or screw mount |
Power | Solar powered |
Videos
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the quality, appearance, and ease of setup of the weather station. They mention that it's well made, durable, and reliable. They appreciate the sleek design and the lack of moving parts. That said, opinions are mixed on performance, accuracy, and connectivity.
AI-generated from the text of customer reviews
Customers find the setup of the weather station to be easy. They mention that it has no moving parts, and the app looks good. They also appreciate the user-friendly interface and the ability to connect to Android assistant. Overall, most are satisfied with the ease of setup and use of the product.
"...Ease of system setup and the ability to remain connected to both the local WI-FI setup as well as the internet are also important...." Read more
"...As described, its set up couldn't have been more simple. I mounted mine 15 feet above the ground on 1.25 diameter heavy duty mast pole...." Read more
"...First off setting up this weather station is the fastest and easiest by a very long way...." Read more
"...This device is so simple to install and configure. I can't imagine a better design...." Read more
Customers are satisfied with the information provided by the Tempest weather station. They mention that the app provides great information and the amount of information this station provides is amazing. The station is a valuable tool for staying informed about the weather, and it presents the information in a logical fashion. The app is very good and provides historical information for your local area.
"...The app is very elegant and very modern looking. Provides all the data that I was seeking...." Read more
"..."alerts" which you can turn off -- but again, amazing accuracy and great data to have...." Read more
"...The Tempest app really seems polished and presents the info in a logical fashion...." Read more
"...It has its own well-executed app that provides loads of data points; but it can also feed its data into the Carrot app, which is a real bonus for..." Read more
Customers are satisfied with the quality of the weather station. They mention it's well-made, durable, and reliable. Some say that the solar power feature is excellent. Overall, customers are happy with their purchase and recommend it to others.
"...The two issues that are paramount for me are accuracy and durability...." Read more
"...between my hub and the Tempest is a good 75ft and it has been totally reliable. ***See edit at bottom.- Easy to mount...." Read more
"...This worked great as is solid/strong. Hope this is helpful." Read more
"...Bottom line is reliability and accuracy. It is a little expensive but so are other higher end systems that just aren't going to last as long...." Read more
Customers generally like the appearance of the weather station. They mention it has a great design, the setup and the app is well-made, and the information is presented in a logical fashion. Some say it's fascinating to watch a storm track using this feature, and they love the history part.
"...The unit is unusual looking and operates using non-traditional technology for several of its data captures..." Read more
"...through other users and was thoroughly impressed with its amazingly simple design (from the end users standpoint) and exceptional functionality, so..." Read more
"...The app is very elegant and very modern looking. Provides all the data that I was seeking...." Read more
"...The Tempest app really seems polished and presents the info in a logical fashion...." Read more
Customers like the solid state non moving parts of the weather station. They say it's a super plus that it has no moving wind vanes or wind speed cups to hang up in ice and snow, and that the advantage of this system is that no moving parts to year out.
"...no wires, no batteries and , no moving parts. " What more could you want?..." Read more
"...So, the big advantage of this system is no moving parts to year out...." Read more
"...The Tempest solves all those issues, with no moving parts and true solar power...." Read more
"...No moving parts is a major benefit of this system. No more clogged rain gauges!!..." Read more
Customers are mixed about the accuracy of the weather station. Some mention that the forecasts are getting a lot more accurate, while others say that the rain accuracy takes a while to calibrate. The build seems solid and the readings are accurate and consistent. However, some customers say that it does not have the most accurate wind readings.
"...The haptic rain guage collects local data, which is then filtered through AI and compared to other nearby weather data collection devices and systems..." Read more
"...If you want a simple to install, simple to use, great statistic keeping weather station this is it. However, be prepared to pay for it." Read more
"...Wind is harder to say is inaccurate, but there definitely have been times where it would register only 1-2 MPH, but I'd look at the trees and think..." Read more
"...Rain accuracy, there are a lot of complaints that it isn’t accurate but I have to say so far it seems to be about spot on and I do LOVE that it..." Read more
Customers are mixed about the performance of the weather station. Some mention that it works well and like the history reporting, while others say that it doesn't work well in the Pacific Northwest, it stopped working after six months, and the hub quit functioning. However, some customers say that the product works differently than a traditional rain gauge, but is very accurate after.
"...amazingly simple design (from the end users standpoint) and exceptional functionality, so I purchased it even though the price was 2 times the cost..." Read more
"...It is just almost fool proof and really anyone can set it up and get great results...." Read more
"...It does work differently than a traditional rain gauge, but I do think it is very accurate after studying and comparing it to other local..." Read more
"...It does natively upload to pws weatherunderground. Overall it’s a good unit and simple to install and setup...." Read more
Customers have mixed opinions about the connectivity of the weather station. Some mention that the connectivity is superb, easy to set up, and there are no connection issues. However, others say that the Tempest weather sensor will not connect to the hub, even if it's 5 feet away. Some customers also say that it never would connect to their app or the base station.
"...It has never become disconnected from either my mesh WI-FI setup or the internet since going operational, even though the unit is installed above a..." Read more
"I had an issue with weather station disconnecting from hub. I contacted Support via the app and got a prompt reply back...." Read more
"...account creation, simple to connect to 2.4G WiFi, hub unit finds and connects to Tempest easily...." Read more
"...Well, they have been causing the Tempest hub to disconnect. I recently moved the hub due to always having to reboot it...." Read more
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This is an update to my review below, originally posted in July of 2021. All of the comments I made in the original review below are still true - except - the accuracy of the rain gain has improved greatly over the past year, just as the Tempest folks said it would. The haptic rain guage collects local data, which is then filtered through AI and compared to other nearby weather data collection devices and systems. After midnight each night, the localized data collected by your Tempest is adjusted to reflect the broader dataset collected from other nearby devices and systems. The post-midnight adjusted rain data is remarkably similar to the two analog rain guages I have near where my Tempest device is located. It took several months for the accuarcy to improve (just like tempest said it would.) It is now nearly identical to the analog guage measurements. To understand how Tempest hueirstic AI works, see this page from their website: https://weatherflow.com/tempest-forecasting/
One year in, I still view my Tempest eather station as (by far) the best of the weather systems priced under $400 that I've owned over the bast two decades.
Original review below, posted in July 2021:
The Tempest Weather System is the most recent of approximately a half dozen consumer priced weather stations that I have owned over the past 20 years. The two issues that are paramount for me are accuracy and durability. The latter issue (durability) is the usual reason for looking into alternatives as 2 - 3 years seems to be about the norm before the earlier systems I've purchased for $400 or less tend to break down. They usually do not fail all at once, but instead start losing selective components one at a time until the overall unit ceases to be useful.
Ease of system setup and the ability to remain connected to both the local WI-FI setup as well as the internet are also important. The Tempest was extraordinary simple to setup and was operational within minutes of being taken out of the box. It has never become disconnected from either my mesh WI-FI setup or the internet since going operational, even though the unit is installed above a metal roof at least 20 meters from the closest WI-FI relay point.
The unit is unusual looking and operates using non-traditional technology for several of its data captures (as can be read about on the manufacturer's website.) So far the accuracy as compared to several onsite analog devices is very high. The haptic rain gauge sometimes reads more rain than an analog gauge placed within a few feet. The AI based correction that occurs each night is a bit aggressive and often over-corrects so that the final rain tally is lower than what analog gauge is showing, although the ratio of difference is lessening over time, which is what the manufacturer indicates would occur as the heuristic AI does its magic. On balance, I'd put the overall accuracy of the combined measurements reported from the Tempest system as superior to any of the La Crosse, AcuRite, Davis or Ambient systems I have owned. The Tempest app also displays the reported data in the best manner of any of the above (which of course is a personal opinion.)
It is impossible to know for now how durable the Tempest system will prove to be as I've only owned it for two months. Like most consumer technology, the price of weather systems has been decreasing for at least a decade. If the Tempest also proves to be durable it will be a significant improvement over its rivals.
In my opinion and for my uses, the Tempest Weather system represents the best value currently available for consumer weather systems under $400. I highly recommend it.
Reviewed in the United States on September 18, 2023
Top reviews from other countries
It does exactly what advertises, good job!
Well, not with this.
Seldom do i come across an IT product that just works, and does what it needs to do, and can be setup quickly and simply.
Well worth the investment.
Only thing now is how long will if last for, as the unit it is replacing is more than 30 years old - so, the challenge begins.
Lots of mounting options.
But living in Denmark or at this attitude with dark and cloudy winters I would go for the Air or Sky version of the Tempest with possibility for internal AA batteries.
My Tempest has been running on power safe mode now for at least three weeks which means no rain detection and only wind sampling every 5 minutes or so. Voltage about 2.34 stationary.
You can get external power bank but it looks less smart than the internal.
Other than this the unit works as described, easy to set up and follow along with the App.
Easy to get online, (make public) on both the WeatherFlow (tempestwx.com) and Weather Underground (wunderground.com) websites.
Installation: I bought a 1.8m (6ft) steel TV aerial mast with an outside diameter of 32mm (1,1/4'') which was just the right size for the pole mount on the base of the Tempest Weather Station. This isn't a subject that's covered too well online, so I mention it here to help others.