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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

46°F

8°C

Humidity 99%
Wind Speed ENE 8 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 06 Dec 09:28 AM PST
Extended Forecast for

4 Miles NW Castro Valley CA

Coastal Flood Advisory December 6, 10:30am until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 6, 10:30am until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • Today

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. North northeast wind around 6 mph.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 60. Calm wind becoming west around 6 mph in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. Northeast wind 3 to 5 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 62. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 45.

    Low: 45 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog before 11pm, then patchy fog after 5am. Otherwise, partly cloudy, with a low around 47.

    Low: 47 °F

    Patchy Fog

Detailed Forecast

Today
Sunny, with a high near 59. Northwest wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 44. North northeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 60. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 44. Northeast wind 3 to 5 mph.
Monday
Mostly sunny, with a high near 62. Calm wind becoming west northwest around 6 mph in the afternoon.
Monday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 45.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 62.
Tuesday Night
Patchy fog before 11pm, then patchy fog after 5am. Otherwise, partly cloudy, with a low around 47.
Wednesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 64.
Wednesday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 47.
Thursday
Patchy fog. Otherwise, sunny, with a high near 65.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 46.
Friday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Castro Valley CA
 37.75°N 122.12°W (Elev. 597 ft)
Last Update:
2:54 am PST Dec 6, 2025
Forecast Valid:
10am PST Dec 6, 2025-6pm PST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation