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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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Tempest Weather System with Built-in Wind Meter, Rain Gauge, and Accurate Weather Forecasts, Wireless, App and Alexa Enabled

4.3 4.3 out of 5 stars (1,475)

To see the product details, add this item to your basket. You can always remove it later.
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Purchase options and add-ons

Brand WeatherFlow
Specific uses for product Weather Monitor
Power source Solar Powered
Special feature Advanced Weather Forecasting using Machine Learning
Material Plastic
Connectivity technology 433 MHz or 868 MHz
Number of batteries 1 Lithium Ion batteries required.
Style Modern
Colour White

About this item

  • As featured in the Wall Street Journal 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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Tempest Weather System with Built-in Wind Meter, Rain Gauge, and Accurate Weather Forecasts, Wireless, App and Alexa Enabled
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Price—£25.61£31.66£29.72£51.24
Delivery—
Get it as soon as Tuesday, Jan 14
Get it as soon as Saturday, Jan 18
Get it as soon as Friday, Jan 24
Get it as soon as Tuesday, Jan 14
Customer Ratings
Sold by
temperature accuracy
power source
sensor technology
upper temperature rate
display type
batteries included
number of batteries

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 weather system and app

  • 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)
  • iOS and Android apps & personal weather page
  • Works with Alexa, IFTTT, and more
  • Direct Rachio integration (code available via WeatherFlow support)

tempest app

A Better Forecast For Your Location

Our 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!

tempest outside home

A Weather Station So Advanced, It’s Simple

A revolutionary design with no moving parts, nearly zero maintenance, instant online data, a 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.

smart home panel

Turn Your Smart Home Into a Genius

Use 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.

wind tunnel test

A Leader in the Private Weather Tech Industry

Tempest’s team of scientists, forecasters, and developers specialize in weather networks, data science, and forecast modeling. Our weather technology is used by the National Weather Service, Coast Guard, Defense Threat Reduction Agency, and more.

smart home features of Tempest

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 Home Weather System Specs

Air Temperature -40°F to 140° F
Relative Humidity 0-100%
Atmospheric Pressure Up to 1100 mbar
Lightning Activity Detects lightning 0 to 40 kilometers away
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 & Accumulation Daily total
Mount Adjustable pole mount or screw mount
Wireless Up to 1000 ft
Power Solar Powered

Looking for specific info?

What's in the box?

  • Mounting Hardware, Hub, Batteries
  • Product details

    • Batteries ‏ : ‎ 1 Lithium Ion batteries required.
    • Product Dimensions ‏ : ‎ 10.75 x 10.75 x 22 cm; 725.75 g
    • Date First Available ‏ : ‎ 18 Mar. 2020
    • Manufacturer ‏ : ‎ WeatherFlow
    • ASIN ‏ : ‎ B0868WY7NY
    • Item model number ‏ : ‎ 2020
    • Country of origin ‏ : ‎ China
    • Guaranteed software updates until ‏ : ‎ unknown
    • Delivery information:: We cannot deliver certain products outside mainland UK ( Details). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
    • Customer reviews:
      4.3 4.3 out of 5 stars 1,475 ratings