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

12 AM
48°F
30%
6mph
WSW
30% Chance Rain Showers
Humidity
72%
Feels like
45°F
Dew Point
40°F
1 AM
47°F
30%
6mph
W
30% Chance Rain Showers
Humidity
71%
Feels like
45°F
Dew Point
38°F
2 AM
46°F
30%
5mph
W
30% Chance Rain Showers
Humidity
70%
Feels like
44°F
Dew Point
37°F
3 AM
46°F
30%
5mph
W
30% Chance Rain Showers
Humidity
69%
Feels like
43°F
Dew Point
36°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