• 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)

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).