Weather alarms for Android
Weather alarms on your own terms
Tell Cloudlarm what matters to you, such as frost tonight, a dry window for the laundry or an aurora under a clear sky, and it lets you know when the forecast says it is coming.
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Cloudlarmnow
Frost expected in Kraków
Down to −2 °C tomorrow around 06:00.
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Cloudlarmnow
Dry hours ahead in Kraków
Dry tomorrow from 10:00 to 15:00.
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Cloudlarmnow
Aurora possible in Tromsø
Kp 5. Dark, clear sky from 21:00.
18 kinds of alarms
Set your own threshold and when to check. The five basic warnings are free; the rest come with Premium.
Warnings
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Frost
Warns when the temperature will drop to your threshold or lower.
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Precipitation
Warns when an hour will bring at least the amount of rain you set, or the snow will reach the depth you set.
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Dry window
Finds the next daylight hours without rain or snow, for work outside.
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Wind
Warns about strong wind or gusts.
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Heat
Warns when the temperature will rise to your threshold or higher.
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Black ice Premium
Warns about rain at freezing temperatures and about wet roads freezing after rain.
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Tropical night Premium
Warns when the night will stay warm, so you can cool the bedroom in time.
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Thunderstorms Premium
Warns when thunderstorms are possible.
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UV index Premium
Warns when the UV index, with clouds taken into account, will reach the level you set.
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Fog Premium
Warns about fog, for example before a drive.
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Pressure drop Premium
Warns when the air pressure will fall fast, which often brings a change in the weather.
Good weather
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Laundry weather Premium
Finds dry daylight hours with low humidity, to dry laundry outside.
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Barbecue weather Premium
Finds dry hours with little wind, until dusk.
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Drone weather Premium
Finds dry daylight hours without fog or frost, with light wind and gusts.
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Running weather Premium
Finds dry hours at the temperature you like to run in, with little wind.
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Stargazing Premium
Finds dark hours without fog, with few clouds in the sky.
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Aurora Premium
Usually alerts you within minutes when the Kp index reaches your level after dark and the sky is clear enough. In the evening, it tells you if NOAA's forecast makes an aurora possible tonight.
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Custom conditions Premium
Finds hours in a row that meet every condition you set, such as dry, calm, mild weather for spraying.
How it works
Pick a place
Use your approximate location or search for a town. Cloudlarm keeps only the area around it, a few kilometres across.
Set your alarms
Choose a threshold, for example −2 °C for frost, and when to check: once a day, or up to four times a day with Premium.
Get a notification
Cloudlarm checks the latest forecast from MET Norway and notifies you when your conditions are met.
Cloudlarm is not an official warning service. In dangerous weather, follow the warnings of your national weather service. To save battery, some phones stop apps in the background, and then alarms check late or not at all.
Private by design
- No account, no ads, no tracking.
- Your exact location never leaves your phone. Our server only sees an area a few kilometres across.
- Your alarms are checked on your phone, so we don't know what you are waiting for. About your place and alarm, aurora alarms tell Google's push service only a hemisphere, a 15° band of longitude and the Kp level you wait for.