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

6 AM
40°F
0%
2mph
SSE
Foggy
Humidity
100%
Feels like
40°F
Dew Point
40°F
7 AM
41°F
0%
3mph
SE
Foggy
Humidity
100%
Feels like
41°F
Dew Point
41°F
8 AM
41°F
0%
3mph
SE
Foggy
Humidity
100%
Feels like
39°F
Dew Point
41°F
8:36 AM
9 AM
42°F
0%
4mph
SE
Foggy
Humidity
99%
Feels like
39°F
Dew Point
42°F
10 AM
44°F
0%
4mph
SSE
Cloudy
Humidity
95%
Feels like
41°F
Dew Point
42°F
11 AM
46°F
0%
5mph
SE
Cloudy
Humidity
91%
Feels like
43°F
Dew Point
43°F
12 PM
48°F
0%
6mph
SE
Cloudy
Humidity
89%
Feels like
45°F
Dew Point
45°F
1 PM
50°F
0%
6mph
SSE
Cloudy
Humidity
86%
Feels like
47°F
Dew Point
46°F
2 PM
51°F
0%
6mph
SSE
Mostly Cloudy
Humidity
84%
Feels like
51°F
Dew Point
46°F
3 PM
51°F
0%
6mph
SSE
Mostly Cloudy
Humidity
83%
Feels like
51°F
Dew Point
46°F
4 PM
51°F
0%
6mph
SE
Mostly Cloudy
Humidity
85%
Feels like
51°F
Dew Point
46°F
4:55 PM
5 PM
50°F
0%
6mph
SE
Cloudy
Humidity
86%
Feels like
50°F
Dew Point
46°F
6 PM
50°F
0%
6mph
SE
Cloudy
Humidity
89%
Feels like
48°F
Dew Point
47°F
7 PM
50°F
20%
5mph
SE
Cloudy
Humidity
90%
Feels like
48°F
Dew Point
47°F
8 PM
50°F
40%
5mph
SE
40% Chance of Light Rain
Humidity
90%
Feels like
50°F
Dew Point
47°F
9 PM
50°F
60%
5mph
SE
60% Chance of Light Rain
Humidity
90%
Feels like
50°F
Dew Point
47°F
10 PM
50°F
60%
5mph
SE
60% Chance of Light Rain
Humidity
91%
Feels like
50°F
Dew Point
48°F
11 PM
50°F
40%
5mph
SE
40% Chance of Light Rain
Humidity
91%
Feels like
50°F
Dew Point
48°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