# Weather-aware smart home with Home Assistant > Home Assistant knows the current weather and the forecast and controls accordingly: watering, underfloor heating, shutters and awning, lighting, solar consumers and alerts to your phone. With a weather picture for the dashboard. Source: https://1x1it.de/en/homeassistant/wetterbild/ Your Home Assistant knows the current weather and the forecast for your location and adjusts the control to them. The lawn sprinkler stays off when rain is coming, the underfloor heating warms up before it gets cold, the awning retracts before the storm arrives. You do not have to think about it. [Discuss a weather-aware smart home](https://1x1it.de/en/kontakt/#anfrage) [All 1x1-Smart Home modules](https://1x1it.de/en/homeassistant/) Weather control Smart home - **Basis:** current weather and forecast for your location - **Plus:** sensors in the house: temperature, windows, humidity - **Controls:** heating, watering, shutters, lighting, appliances - **Alerts:** severe weather, frost, open window when it rains - **Display:** weather picture in the dashboard - **Cloud:** none, the rules run in your house ## What weather and forecast can control Knowing what is happening outside and what the next hours will bring, the house does not just react, it plans ahead. - Watering: If it has rained or rain is forecast, the lawn sprinkler stays off. In heat and drought it waters early in the morning, when little water evaporates. - Underfloor heating: A screed floor reacts slowly. When the forecast announces cold, the control warms up in time instead of reacting only once it is already cool inside. More under [heating control](https://1x1it.de/en/homeassistant/heizung/). - Shutters and awning: In strong sun the shutters on the south side come down and keep the heat out. When gusts are forecast, the awning retracts in time. - Windows and rain: If a window is open and rain is on its way, you get a message on your phone before it rains in. - Lighting by daylight: Outdoor and indoor lighting follow dusk and cloud cover instead of a fixed time. On dull days the lights come on earlier. - Using solar power: When plenty of sun is forecast for midday, appliances such as the heat pump or washing machine start when the solar panels produce power. - Frost and severe weather: When frost is coming, you get a reminder about the outdoor tap and plants in time. Severe weather warnings arrive as a message. - Everything at a glance: The weather picture in the dashboard shows what is happening outside and how the house responds, without columns of numbers. This is just a selection. Almost anything in your house that can be switched or measured can be linked to the weather and forecast: pond pump, pool heating, ventilation, garage door, roof windows or a reminder to bring in the garden furniture. Tell us what you have in mind. ## How the control decides We define the rules together with you, and you can adjust them at any time. - Weather and forecast: Temperature, rain, wind, sun and cloud cover for your location, now and for the next hours and days. - State of the house: Room temperatures, open windows, soil moisture, solar power output. - Rule and action: From both, Home Assistant decides: heat, water, shade, switch on or let you know. ## The weather picture: what the control sees right now The picture shows the weather and time of day as they are in Möthlow right now: sun and moon in their real position, the trees by season, rain, snow and fog from the current weather, lights in the windows in the evening. Use the buttons below to try out any situation. Season Today Spring Summer Autumn Winter Weather Current Clear Cloudy Rain Thunderstorm Snow Fog Time of day Now Time --:-- In the house Lights automatic Lights on Lights off Garage closed Garage open ## Where the data comes from - **In your house:** Home Assistant gets weather and forecast through a weather integration, for example with data from the German Weather Service for your location. The values are available to all automations, the rules run locally in your house, no cloud needed. - **On this page:** The sample picture uses the nearest German Weather Service station near Möthlow. Our server fetches the values every 10 minutes, your browser only loads a small file from us and never contacts a weather service. ## Frequently asked questions ### What happens if the forecast is wrong? The control keeps checking the actual values inside and outside. If the announced rain does not come, the sprinkler waters on its next run, and the heating adjusts to the real room temperature. ### Can I change the rules myself? Yes. You set thresholds such as temperature, amount of rain or wind speed in the dashboard. Bigger changes we discuss with you. ### Is the weather picture a video? No. The picture is made of photos of the same scene in five seasons and one night shot, the browser adds sky, light, rain, snow and fog on top. The photos of this sample scene were generated with AI, the house does not exist. ### Does the picture move if I have reduced motion turned on? No. If “reduce motion” is enabled on your device, the picture shows the current state without animation. ## Related [Heating control Heating by weather forecast](https://1x1it.de/en/homeassistant/heizung/) [Sensor nodes Temperature, windows, humidity, local](https://1x1it.de/en/homeassistant/sensoren/) [Secure remote access Maintenance without opening the firewall](https://1x1it.de/en/homeassistant/fernzugriff/) [1x1-Smart Home All modules at a glance](https://1x1it.de/en/homeassistant/) ## Should your house think ahead? We set up Home Assistant and connect weather and forecast with heating, watering, shutters and your dashboard, in Berlin and Brandenburg. [0173 644 22 17](tel:+491736442217) [Discuss a weather-aware smart home](https://1x1it.de/en/kontakt/#anfrage)