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

12 AM
46°F
10%
10mph
S
Partly Cloudy
Humidity
86%
Feels like
41°F
Dew Point
42°F
1 AM
46°F
10%
11mph
SSW
Mostly Cloudy
Humidity
85%
Feels like
41°F
Dew Point
42°F
2 AM
46°F
10%
11mph
S
Mostly Cloudy
Humidity
88%
Feels like
41°F
Dew Point
43°F
3 AM
46°F
10%
11mph
S
Mostly Cloudy
Humidity
88%
Feels like
41°F
Dew Point
43°F
4 AM
47°F
10%
11mph
S
Partly Cloudy
Humidity
89%
Feels like
42°F
Dew Point
44°F
5 AM
47°F
10%
11mph
S
Mostly Cloudy
Humidity
91%
Feels like
42°F
Dew Point
45°F
6 AM
48°F
20%
11mph
S
Cloudy
Humidity
93%
Feels like
43°F
Dew Point
46°F
7 AM
48°F
20%
12mph
S
Cloudy
Humidity
92%
Feels like
43°F
Dew Point
46°F
8 AM
48°F
20%
12mph
S
Cloudy
Humidity
92%
Feels like
43°F
Dew Point
46°F
8:42 AM
9 AM
49°F
20%
12mph
SSE
Cloudy
Humidity
89%
Feels like
44°F
Dew Point
46°F
10 AM
50°F
20%
12mph
S
Mostly Cloudy
Humidity
84%
Feels like
45°F
Dew Point
45°F
11 AM
51°F
0%
13mph
S
Partly Cloudy
Humidity
80%
Feels like
51°F
Dew Point
45°F
12 PM
52°F
0%
14mph
S
Partly Cloudy
Humidity
76%
Feels like
52°F
Dew Point
45°F
1 PM
53°F
0%
15mph
S
Partly Cloudy
Humidity
73%
Feels like
53°F
Dew Point
45°F
2 PM
55°F
0%
16mph
S
Partly Cloudy
Humidity
70%
Feels like
55°F
Dew Point
45°F
3 PM
55°F
0%
17mph
S
Partly Cloudy
Humidity
66%
Feels like
55°F
Dew Point
44°F
4 PM
55°F
0%
17mph
S
Mostly Cloudy
Humidity
65%
Feels like
55°F
Dew Point
44°F
4:56 PM
5 PM
55°F
0%
17mph
S
Mostly Cloudy
Humidity
68%
Feels like
55°F
Dew Point
44°F
6 PM
55°F
0%
17mph
SSW
Cloudy
Humidity
69%
Feels like
55°F
Dew Point
45°F
7 PM
54°F
0%
17mph
SSW
Cloudy
Humidity
71%
Feels like
54°F
Dew Point
45°F
8 PM
54°F
0%
17mph
SSW
Cloudy
Humidity
72%
Feels like
54°F
Dew Point
46°F
9 PM
54°F
10%
17mph
SSW
Cloudy
Humidity
75%
Feels like
54°F
Dew Point
46°F
10 PM
54°F
30%
16mph
SSW
30% Chance of Light Rain
Humidity
77%
Feels like
54°F
Dew Point
47°F
11 PM
53°F
40%
15mph
SSW
40% Chance of Light Rain
Humidity
79%
Feels like
53°F
Dew Point
47°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Wednesday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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