Hourly Weather Forecast - Clayton, CA

12 AM
42°F
0%
4mph
SW
Foggy
Humidity
100%
Feels like
39°F
Dew Point
42°F
1 AM
42°F
0%
4mph
SW
Foggy
Humidity
100%
Feels like
39°F
Dew Point
42°F
2 AM
42°F
0%
4mph
SW
Foggy
Humidity
100%
Feels like
40°F
Dew Point
42°F
3 AM
42°F
0%
4mph
SW
Foggy
Humidity
100%
Feels like
40°F
Dew Point
42°F
4 AM
43°F
0%
4mph
SW
Foggy
Humidity
100%
Feels like
40°F
Dew Point
43°F
5 AM
43°F
0%
4mph
SW
Foggy
Humidity
100%
Feels like
41°F
Dew Point
43°F
6 AM
44°F
0%
4mph
SW
Foggy
Humidity
100%
Feels like
41°F
Dew Point
44°F
7 AM
45°F
0%
4mph
SW
Foggy
Humidity
99%
Feels like
43°F
Dew Point
44°F
7:18 AM
8 AM
46°F
0%
4mph
SW
Partly Cloudy
Humidity
97%
Feels like
45°F
Dew Point
46°F
9 AM
49°F
0%
4mph
SW
Partly Cloudy
Humidity
93%
Feels like
47°F
Dew Point
47°F
10 AM
51°F
0%
4mph
SW
Partly Cloudy
Humidity
88%
Feels like
51°F
Dew Point
48°F
11 AM
54°F
0%
4mph
SW
Mostly Cloudy
Humidity
83%
Feels like
54°F
Dew Point
49°F
12 PM
56°F
0%
4mph
WSW
Mostly Cloudy
Humidity
78%
Feels like
56°F
Dew Point
49°F
1 PM
57°F
0%
4mph
W
Mostly Cloudy
Humidity
76%
Feels like
57°F
Dew Point
49°F
2 PM
57°F
0%
4mph
W
Partly Cloudy
Humidity
76%
Feels like
57°F
Dew Point
49°F
3 PM
55°F
0%
4mph
W
Partly Cloudy
Humidity
80%
Feels like
55°F
Dew Point
49°F
4 PM
52°F
0%
4mph
W
Partly Cloudy
Humidity
87%
Feels like
52°F
Dew Point
48°F
4:50 PM
5 PM
49°F
0%
4mph
WSW
Partly Cloudy
Humidity
92%
Feels like
48°F
Dew Point
47°F
6 PM
47°F
0%
4mph
WSW
Cloudy
Humidity
96%
Feels like
45°F
Dew Point
46°F
7 PM
45°F
0%
4mph
SW
Foggy
Humidity
99%
Feels like
44°F
Dew Point
45°F
8 PM
44°F
0%
4mph
SW
Foggy
Humidity
100%
Feels like
42°F
Dew Point
44°F
9 PM
44°F
0%
4mph
SW
Foggy
Humidity
100%
Feels like
41°F
Dew Point
44°F
10 PM
44°F
0%
5mph
SW
Foggy
Humidity
100%
Feels like
41°F
Dew Point
44°F
11 PM
44°F
0%
5mph
SW
Foggy
Humidity
100%
Feels like
41°F
Dew Point
44°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today'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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