Hourly Weather Forecast - San Ramon, CA

12 AM
49°F
50%
3mph
SE
50% Chance of Light Rain
Humidity
99%
Feels like
49°F
Dew Point
49°F
1 AM
49°F
40%
3mph
E
40% Chance of Light Rain
Humidity
99%
Feels like
49°F
Dew Point
49°F
2 AM
49°F
40%
3mph
E
40% Chance of Rain
Humidity
98%
Feels like
49°F
Dew Point
48°F
3 AM
49°F
30%
3mph
E
30% Chance of Rain
Humidity
99%
Feels like
49°F
Dew Point
48°F
4 AM
49°F
30%
2mph
ESE
30% Chance of Rain
Humidity
99%
Feels like
49°F
Dew Point
48°F
5 AM
49°F
30%
2mph
ESE
30% Chance of Rain
Humidity
99%
Feels like
49°F
Dew Point
48°F
6 AM
49°F
30%
2mph
ESE
30% Chance of Rain
Humidity
99%
Feels like
49°F
Dew Point
48°F
7 AM
49°F
30%
3mph
ESE
30% Chance of Rain
Humidity
100%
Feels like
49°F
Dew Point
49°F
7:20 AM
8 AM
49°F
30%
3mph
SE
30% Chance of Rain
Humidity
100%
Feels like
49°F
Dew Point
49°F
9 AM
49°F
30%
3mph
SE
30% Chance of Rain
Humidity
100%
Feels like
49°F
Dew Point
49°F
10 AM
50°F
30%
3mph
SSE
30% Chance of Rain
Humidity
100%
Feels like
50°F
Dew Point
50°F
11 AM
51°F
30%
3mph
SSE
30% Chance of Rain
Humidity
100%
Feels like
51°F
Dew Point
51°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday'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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