Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

NA

45°F

7°C

Humidity 100%
Wind Speed NE 4 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 14 Nov 09:50 PM PST
Extended Forecast for

5 Miles NNE San Ramon CA

  • Tonight

    Tonight: Increasing clouds, with a steady temperature around 51. Calm wind.

    Low: 51 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 30 percent chance of showers after 10am.  Mostly cloudy, with a high near 63. Calm wind becoming north northwest around 6 mph in the morning.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely.  Cloudy, with a low around 50. South southwest wind around 7 mph.  Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely.  Mostly cloudy, with a high near 61. South southwest wind around 9 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers.  Low around 48. South southeast wind around 8 mph, with gusts as high as 22 mph.  Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 4pm.  Mostly cloudy, with a high near 59. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 20 percent chance of showers before 10pm.  Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a steady temperature around 51. Calm wind.
Saturday
A 30 percent chance of showers after 10am. Mostly cloudy, with a high near 63. Calm wind becoming north northwest around 6 mph in the morning. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Showers likely. Cloudy, with a low around 50. South southwest wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Showers likely. Mostly cloudy, with a high near 61. South southwest wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers. Low around 48. South southeast wind around 8 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Showers likely, mainly before 4pm. Mostly cloudy, with a high near 59. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 20 percent chance of showers before 10pm. Mostly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 46.
Thursday
A chance of showers. Partly sunny, with a high near 60.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE San Ramon CA
 37.83°N 121.91°W (Elev. 1220 ft)
8:05 pm PST Nov 14, 2025
10pm PST Nov 14, 2025-6pm PST Nov 21, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database