14-day forecast Updated 17:03
Today
Clear
+21°
+12°
5%
⌄
Wind 9 km/h W
Gusts 14 km/h
UV index 5 – Moderate
Chance of rain 5%
Sunrise 07:21
Sunset 20:15
Tomorrow
Cloudy
+25°
+15°
8%
⌄
Wind 15 km/h NW
Gusts 23 km/h
UV index 5 – Moderate
Chance of rain 8%
Sunrise 07:22
Sunset 20:13
Saturday Sat 12/9Clear
+25°
+15°
3%
⌄
Wind 12 km/h W
Gusts 18 km/h
UV index 5 – Moderate
Chance of rain 3%
Sunrise 07:24
Sunset 20:11
Sunday Sun 13/9Showers
+25°
+15°
2,9 mm
⌄
Wind 16 km/h W
Gusts 38 km/h
UV index 4 – Moderate
Chance of rain 64%
Sunrise 07:25
Sunset 20:09
Monday Mon 14/9Clear
+26°
+15°
8%
⌄
Wind 8 km/h NW
Gusts 25 km/h
UV index 7 – High
Chance of rain 8%
Sunrise 07:27
Sunset 20:07
Tuesday Tue 15/9Clear
+30°
+17°
2%
⌄
Wind 27 km/h NW
Gusts 43 km/h
UV index 7 – High
Chance of rain 2%
Sunrise 07:28
Sunset 20:05
Wednesday Wed 16/9Clear
+20°
+12°
7%
⌄
Wind 19 km/h W
Gusts 43 km/h
UV index 5 – Moderate
Chance of rain 7%
Sunrise 07:30
Sunset 20:03
Thursday Thu 17/9Partly cloudy
+22°
+13°
10%
⌄
Wind 11 km/h N
Gusts 24 km/h
UV index 6 – High
Chance of rain 10%
Sunrise 07:31
Sunset 20:01
Friday Fri 18/9Cloudy
+25°
+13°
9%
⌄
Wind 13 km/h W
Gusts 26 km/h
UV index 5 – Moderate
Chance of rain 9%
Sunrise 07:32
Sunset 19:58
Saturday Sat 19/9Cloudy
+20°
+12°
12%
⌄
Wind 18 km/h W
Gusts 37 km/h
UV index 5 – Moderate
Chance of rain 12%
Sunrise 07:34
Sunset 19:56
Sunday Sun 20/9Clear
+21°
+11°
5%
⌄
Wind 11 km/h N
Gusts 22 km/h
UV index 6 – High
Chance of rain 5%
Sunrise 07:35
Sunset 19:54
Monday Mon 21/9Cloudy
+20°
+11°
10%
⌄
Wind 12 km/h NE
Gusts 26 km/h
UV index 6 – High
Chance of rain 10%
Sunrise 07:37
Sunset 19:52
Tuesday Tue 22/9Cloudy
+20°
+13°
14%
⌄
Wind 18 km/h W
Gusts 32 km/h
UV index 4 – Moderate
Chance of rain 14%
Sunrise 07:38
Sunset 19:50
Wednesday Wed 23/9Clear
+25°
+13°
8%
⌄
Wind 16 km/h W
Gusts 27 km/h
UV index 6 – High
Chance of rain 8%
Sunrise 07:39
Sunset 19:48
Measurements & index
Wind
9 km/h W
Gusts 11 km/h
UV index
5 — Moderate
Max today
Pollen
Moderate levels
Mugwort
Fire risk
Modéré
Météo-France fire-risk forecast
Sunrise 07:21
Sunset 20:15
Day length 12 h 54 min
Moonrise 06:00
Moonset 19:48
Moon phase 🌔 New Moon
Latitude 48.7733°N
Longitude 2.0739°E
Dieppe (147km) 20°
Le Havre (165km) 20°
Calais (243km) 20°
Dunkerque (252km) 20°
Cherbourg (287km) 19°
Saint-Malo (300km) 21°
Saint-Nazaire (356km) 21°
La Rochelle (374km) 22°
Today’s index derived from today’s forecast
Drying weather
Good
Hang laundry outside
Barbecue weather
Good
Grill outdoors
Running weather
Good
Go for a run
Outdoor dining
Good
Coffee outdoors
Other places in the same county / region
Loading…
Sources · Thursday 10 September
Weather data for Guyancourt from official sources
Weather in Guyancourt, Île-de-France: hour-by-hour, 7-day and 15-day forecasts, updated continuously. Right now it is +21°, clear, wind 9 km/h. Over the next 7 days temperatures will range from 12 to 30 °C, with 5 sunny days and around 3 mm of rain expected. Air quality there is fair (EAQI index 31). Sources: Météo-France, Open-Meteo, WeatherAPI — coordinates 48.7733, 2.0739.