# \[Help needed\] Trigger flow if weather forecast shows freezing **URL:** \ **Category:** Questions & Help\ **Tags:** flow, weather\ **Created:** [February 15, 2020, 8:24pm UTC](https://community.homey.app/t/help-needed-trigger-flow-if-weather-forecast-shows-freezing/25945 "2020-02-15T20:24:49Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![KennethJ](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/kennethj/32/19919_2.png) [@KennethJ](https://community.homey.app/u/KennethJ)\ **Post date:** [February 15, 2020, 8:24pm UTC](https://community.homey.app/t/help-needed-trigger-flow-if-weather-forecast-shows-freezing/25945/1 "2020-02-15T20:24:49Z")
Hi all, been using Homey for quite a while now but the last days I’ve been stuck with this flow. So now I’m reaching out to the combined brain trust of you 😉 In my house I have floor heating installed with heating thermostats from TADO. I really recommend those thermostats, but that’s a side story. The thing with floor heating is that it is reacting very slow. I have 12-18 hours of delay when I change my temperature settings. This requires me to better foresee the coming weather for the next days. If freezing temperatures are coming, then I need to turn up my flor heating already before the temperature starts to drop. Any idea how I could continually pull the coming forecast and spot if any days will be with freezing weather? ---
**Author:** ![Henk\_Bartels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/henk_bartels/32/12762_2.png) [@Henk\_Bartels](https://community.homey.app/u/Henk_Bartels)\ **Post date:** [February 15, 2020, 9:30pm UTC](https://community.homey.app/t/help-needed-trigger-flow-if-weather-forecast-shows-freezing/25945/2 "2020-02-15T21:30:16Z")
Hello, I use the app Current Weather for this. There are many things you can use as a flow starter, for example if the rain has changed then… But you can see this at this app. I use it to determen if the solarscreen has to go out or not… Henk ---
**Author:** ![DirkG](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dirkg/32/118897_2.png) [@DirkG](https://community.homey.app/u/DirkG)\ **Post date:** [February 16, 2020, 6:05am UTC](https://community.homey.app/t/help-needed-trigger-flow-if-weather-forecast-shows-freezing/25945/3 "2020-02-16T06:05:47Z")
You can use Open Weather Map. OWM has a weather forecast of up to 5 days. The use is free, but you have to register with OWM. > **[Сurrent weather and forecast - OpenWeatherMap](https://openweathermap.org/)** > > Get current weather, hourly forecast, daily forecast for 16 days, and 3-hourly forecast 5 days for your city. Historical weather data for 40 years back for any coordinate. Helpful stats, graphics, and this day in history charts are available for your... In the app you can then set a weather forecast in an interval of 3 hours (3 or 6 or 9 or 12 or 15 or 18 hours, etc. up to 5 days). Unfortunately only one setting is possible, but this should be enough for your needs. For more information I recommend this post. It explains exactly what you have to do. Examples are also included. > [@\[Archived\]\[APP\]\[Pro\] OpenWeatherMap](https://community.homey.app/t/openweathermap-central-topic/1048): > > Archived! Please continue here: [[App][Pro] OpenWeather](https://community.homey.app/t/app-pro-openweather/61482) This topic is for discussing the OpenWeatherMap app: [OpenWeather App for Homey | Homey](https://apps.athom.com/app/nu.baretta.openweathermap). The app polls the current weather as well as the 5 and 16-day forecast data of the [OpenWeatherMap API](http://openweathermap.org/api) and offers a host of flow triggers and conditions. To use the data a freely available API key is required. Note that with the free API key the data of the current weather table can be delayed by up to three hours. To use the data, you can add ‘dev… If you still have questions, I will try to answer them.