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14°
Mostly Clear
Feels Like: 14°
Min: 13°
Max: 21°
The next few hours will be clear, with today reaching 21°C and dropping to 16°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:24
Sunrise
19:08
Sunset
Moon
Waxing Gibbous
18:38
Moonrise
05:40
Moonset
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View stargazing scoreWeather in Altdorf today, September 25, 2026
Altdorf keeps a mostly sunny profile on September 25, 2026, aside from a cloudier spell around 23:00. Outside that window, bright conditions should still lead the day. Expect a brighter morning, with limited cloud around 22% by 08:00. Conditions start on a settled note.
The day peaks near 21°C and cools toward 13°C. The air stays humid, with relative humidity between 53% and 70% and the peak around 20:00. Winds stay light, near 1.9 km/h by 14:00, so the day feels still more than breezy.
Afternoon conditions open up, holding cloud close to 44% near 23:00. The day finishes on a milder, brighter note. Horizontal visibility sits around 40.7 km, briefly nearer 39.8 km. Daylight runs from 07:24 to 19:08, lasting 11 hours 44 minutes of sunlight today.
In short, September 25, 2026 looks like a fine day in Altdorf for being outside, peaking around 21°C.
Frequently asked questions about weather in Altdorf
How warm does it get in Altdorf?
The warmest month in Altdorf is July, with average high temperatures of 20°C. The average temperature during this period is around 15°C.
How cold does it get in Altdorf?
The coldest month in Altdorf is January, with average low temperatures of -6°C. The average temperature during this period is around -3°C.
What is the wettest time of year in Altdorf?
The wettest month in Altdorf is August, with an average of 224mm of precipitation.
What is the driest time of year in Altdorf?
The driest month in Altdorf is February, with an average of 107mm of precipitation.
