Hourly Weather Forecast - Guyancourt, Ile-del-France, FR

12 AM
51°F
30%
5mph
SSE
30% Chance of Light Rain
Humidity
91%
Feels like
51°F
Dew Point
48°F
1 AM
51°F
30%
5mph
SSE
30% Chance of Light Rain
Humidity
91%
Feels like
51°F
Dew Point
48°F
2 AM
50°F
10%
6mph
S
Mostly Cloudy
Humidity
92%
Feels like
50°F
Dew Point
48°F
3 AM
50°F
0%
6mph
S
Mostly Cloudy
Humidity
92%
Feels like
50°F
Dew Point
48°F
4 AM
50°F
0%
6mph
S
Mostly Cloudy
Humidity
89%
Feels like
50°F
Dew Point
47°F
5 AM
50°F
0%
6mph
S
Partly Cloudy
Humidity
88%
Feels like
50°F
Dew Point
46°F
6 AM
50°F
0%
6mph
S
Mostly Cloudy
Humidity
89%
Feels like
47°F
Dew Point
47°F
7 AM
49°F
0%
6mph
S
Mostly Cloudy
Humidity
90%
Feels like
47°F
Dew Point
46°F
8 AM
49°F
0%
6mph
S
Mostly Cloudy
Humidity
90%
Feels like
47°F
Dew Point
46°F
8:37 AM
9 AM
49°F
0%
6mph
S
Mostly Cloudy
Humidity
89%
Feels like
47°F
Dew Point
46°F
10 AM
50°F
0%
6mph
SSE
Mostly Cloudy
Humidity
89%
Feels like
50°F
Dew Point
47°F
11 AM
52°F
0%
6mph
S
Cloudy
Humidity
85%
Feels like
52°F
Dew Point
47°F
12 PM
53°F
0%
6mph
S
Cloudy
Humidity
82%
Feels like
53°F
Dew Point
47°F
1 PM
53°F
0%
6mph
S
Mostly Cloudy
Humidity
81%
Feels like
53°F
Dew Point
47°F
2 PM
53°F
0%
6mph
S
Mostly Cloudy
Humidity
82%
Feels like
53°F
Dew Point
48°F
3 PM
53°F
0%
5mph
S
Mostly Cloudy
Humidity
83%
Feels like
53°F
Dew Point
48°F
4 PM
53°F
0%
4mph
SSW
Mostly Cloudy
Humidity
87%
Feels like
53°F
Dew Point
49°F
4:55 PM
5 PM
52°F
0%
4mph
S
Mostly Cloudy
Humidity
84%
Feels like
52°F
Dew Point
47°F
6 PM
51°F
10%
3mph
ESE
Cloudy
Humidity
86%
Feels like
51°F
Dew Point
47°F
7 PM
50°F
0%
3mph
ESE
Cloudy
Humidity
89%
Feels like
50°F
Dew Point
47°F
8 PM
50°F
0%
3mph
ESE
Cloudy
Humidity
90%
Feels like
50°F
Dew Point
47°F
9 PM
49°F
0%
3mph
WSW
Cloudy
Humidity
90%
Feels like
49°F
Dew Point
47°F
10 PM
49°F
10%
3mph
NW
Cloudy
Humidity
91%
Feels like
49°F
Dew Point
46°F
11 PM
48°F
10%
3mph
NE
Cloudy
Humidity
91%
Feels like
48°F
Dew Point
46°F

Snow and ice forecast through Friday A.M.

Multiple Snow Threats Across the Northern U.S.

Multiple systems will bring snow across the Northern U.S. through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Unrelenting Rains Soak the Northwest

Thursday's Weather Outlook

Thursday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide