This requires a Dark Sky sensor with the condition
precip_intensity that tells if it’s raining or not. You could also experiment with other attributes such as
Turn on a light in the living room when it starts raining, someone is home, and it’s afternoon or later.
automation: alias: 'Rainy Day' trigger: - platform: state entity_id: sensor.precip_intensity state: 'rain' - platform: state entity_id: group.all_devices state: 'home' - platform: time after: '14:00' before: '23:00' condition: use_trigger_values action: service: light.turn_on entity_id: light.couch_lamp
And then of course turn off the lamp when it stops raining but only if it’s within an hour before sunset.
automation 2: alias: 'Rain is over' trigger: - platform: state entity_id: sensor.precip_intensity state: 'None' - platform: sun event: 'sunset' offset: '-01:00:00' condition: use_trigger_values action: service: light.turn_off entity_id: light.couch_lamp