See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
19°
Mostly Cloudy
Feels Like: 20°
Min: 12°
Max: 21°
The next few hours will be partly cloudy, with today reaching 21°C and dropping to 11°C. The coming days will be mostly clear
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:37
Sunrise
19:54
Sunset
Moon
Waxing Crescent
13:53
Moonrise
21:48
Moonset
Daily Forecast
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Thursday
Friday
Saturday
Sunday
Monday
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Friday
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Humidity
Weather in Saint-Quentin-en-Yvelines today, September 16, 2026
Cloud cover dominates in Saint-Quentin-en-Yvelines on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells.
Temperatures climb from an overnight low near 12°C toward a daytime high of about 21°C. The air stays humid, with relative humidity between 46% and 84% and the peak around 23:00. A lighter breeze peaks around 14:00 near 4.7 km/h.
Through the afternoon cloud remains the main feature, with cover near 81% around 14:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 39.3 km, briefly nearer 30.1 km. Daylight runs from 07:37 to 19:54, lasting 12 hours 16 minutes of sunlight today.
In short, cloud leads the story in Saint-Quentin-en-Yvelines on September 16, 2026; expect limited sun and a peak around 21°C.
Frequently asked questions about weather in Saint-Quentin-en-Yvelines
How warm does it get in Saint-Quentin-en-Yvelines?
The warmest month in Saint-Quentin-en-Yvelines is July, with average high temperatures of 25°C. The average temperature during this period is around 20°C.
How cold does it get in Saint-Quentin-en-Yvelines?
The coldest month in Saint-Quentin-en-Yvelines is January, with average low temperatures of 2°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Saint-Quentin-en-Yvelines?
The wettest month in Saint-Quentin-en-Yvelines is October, with an average of 82mm of precipitation.
What is the driest time of year in Saint-Quentin-en-Yvelines?
The driest month in Saint-Quentin-en-Yvelines is August, with an average of 51mm of precipitation.
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