This app requires the Tempest sensor device, which is available to buy separately.

Need to set up and configure your Tempest Weather System? 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 your guaranteed better local forecast.

Observational data reported by Tempest include:
- 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 measurement, rain onset alerts
- 10 day forecast for your specific location
- Historical weather data graphs
- System monitoring, diagnostics, and firmware updating

Smart Home Ready:
Use this app to integrate with popular smart home services. Use your weather data to optimize heating and cooling, adjust your irrigation schedule, alert your family when lightning storms approach, and close your garage door when the wind kicks up. Tempest is compatible with Google Assistant, Smart Things, IFTTT, Siri, Alexa, Homey and many more.

Weather Geek Worthy:
Featuring an all-in-one sensor and revolutionary concepts like our long-range wireless connectivity (1000ft), sonic anemometer and haptic rain sensor, the Tempest sensor device is just one component of an advanced system. Our AI-powered app leverages machine learning to process weather data from your backyard, ensuring a more accurate local forecast - guaranteed.

Completely Customizable:
Tempest’s open API and shareable data enables third party use, with built-in publication to desktop software and online services.

What’s New

Version 4.05

- Lightning information from your station is now displayed on the forecast screen.
- We fixed an issue where lightning information was sometimes not displaying correctly on the station dashboard screen.
- Minor bug fixes and performance enhancements.

Ratings and Reviews

4.0 out of 5
72 Ratings

72 Ratings

Appleman84829 ,

Fantastic weather station

This is a fantastic weather station. The best one I’ve own! I would have given it a five star rating if it had one additional feature. More on that later. The unit was extremely simple to setup. It started sending data to the app as soon as the setup was complete. I had a thunderstorm the evening I received the unit. Lightning detection was accurate and timely. Rain onset, rate, and amount was accurate and notification was right on time. Highly recommend.

Now what would it take for that 5th star? An Apple Watch app and complications. I rely on weather data on my Apple Watch more than my phone. I currently have complications from Carrot Weather on my watch but would love to have the data from the Tempest displayed. Any plans on creating an Apple Watch app? That would complete the system.

Z-Wx ,

Weather Done Smartly

As a retired old weather forecaster I am blown away by my new Weather Flow instrument and their supporting apps. Accurate, dependable, historical, and brilliantly designed. It measures wind, rainfall, and solar from the top of my roof, and temp, humidity, pressure, and lightning strikes from a separate unit under a north-facing eave. It is all networked with a wireless router device in my office. The unit on the roof is solar powered and the whole system has no moving parts! Support is timely and helpful. A couple of weeks ago our local internet provider went down for a few hours. I received email notification from Weather Flow asking if they could help because data had stopped flowing. I waited a number of years for a home weather station. I'm absolutely delighted with the Weather Flow!

Developer Response ,

Thanks for this fantastic review! We appreciate your support and enthusiasm.

cyberjew ,

Tempest Needs APRS Support DESPERATELY!!!

I LOVE LOVE LOVE your product! As a licensed amateur radio operator, I am interested in being able to send WX updates via APRS (ideally via RF through the TNC in my TM-D710G but I wouldn’t be opposed to IP-based APRS updates either). If Tempest has some form of serial interface (Bluetooth maybe?) it would be a fairly trivial effort to incorporate what needs to be transmitted to the TNC. One of your biggest competitors (Davis Instruments) incorporated APRS in their WeatherLink for APRS. I’d be willing to bet you’d get a pretty hardcore group of ham radio followers that would jump on the Tempest bandwagon if you added APRS functionality to Tempest! Supposedly there’s a third party piece of software called Weather Display that people are using to make this happen with Tempest today but I’m still trying to track it down.

Developer Response ,

Hi! While there is no direct integration for APRS or CWOP, you can use a third party app to share your data elsewhere. Check out the community forum for more info:


218.3 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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