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Hourly Forecast
Daylight Hours
07:37
Sunrise
19:39
Sunset
Moon
Waxing Gibbous
17:23
Moonrise
01:04
Moonset
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View stargazing scoreWeather in Laon today, September 20, 2026
Expect a muted, overcast feel in Laon on September 20, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief.
Expect highs of 21°C and cooler readings close to 13°C. The air stays humid, with relative humidity between 49% and 67% and the peak around 21:00. Airflow remains manageable, reaching about 4.8 km/h around 17:00.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 17:00. Outdoor plans may still want a flexible backup. Expect visibility near 39.9 km, with poorer spells close to 38.8 km. Daylight runs from 07:37 to 19:39, lasting 12 hours 1 minutes of sunlight today.
Overall, Laon on September 20, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 21°C.
Frequently asked questions about weather in Laon
How warm does it get in Laon?
The warmest month in Laon is August, with average high temperatures of 25°C. The average temperature during this period is around 20°C.
How cold does it get in Laon?
The coldest month in Laon is January, with average low temperatures of 2°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Laon?
The wettest month in Laon is January, with an average of 88mm of precipitation.
What is the driest time of year in Laon?
The driest month in Laon is April, with an average of 54mm of precipitation.
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