National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

LAS TRAMPAS (LTRC1)

Lat: 37.83389°NLon: 122.06694°WElev: 1760.0ft.

NA

59°F

15°C

Humidity 76%
Wind Speed S 9 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 12 Nov 05:28 PM PST
Extended Forecast for

Danville CA

Wind Advisory November 12, 10:00pm until November 13, 04:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Showers, mainly after 10pm. Low around 58. Southeast wind 7 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 58 °F

    Showers

  • Thursday

    Thursday: Showers. High near 66. South southeast wind 11 to 17 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 66 °F

    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 50. South wind 5 to 10 mph, with gusts as high as 26 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A 30 percent chance of showers before 4pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming east northeast around 5 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: A chance of showers between 10pm and 4am. Partly cloudy, with a low around 47. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers after 10am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 67. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Saturday Night

    Saturday Night: A 20 percent chance of showers. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 64.

    High: 64 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers, mainly after 10pm. Low around 58. Southeast wind 7 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers. High near 66. South southeast wind 11 to 17 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
A 50 percent chance of showers. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 50. South wind 5 to 10 mph, with gusts as high as 26 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 30 percent chance of showers before 4pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming east northeast around 5 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers between 10pm and 4am. Partly cloudy, with a low around 47. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of showers after 10am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 67. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 20 percent chance of showers. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 49.
Sunday
A slight chance of showers. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 64.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 48.
Monday
A chance of showers, mainly before 10am. Mostly sunny, with a high near 61.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 43.
Tuesday
Patchy fog. Otherwise, sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Danville CA
 37.82°N 121.99°W (Elev. 397 ft)
Last Update:
12:26 pm PST Nov 12, 2025
Forecast Valid:
6pm PST Nov 12, 2025-6pm PST Nov 19, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation