Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

45°F

7°C

Humidity 93%
Wind Speed WSW 22 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Wind Chill37°F (3°C)
Last update 26 Dec 04:28 AM PST
Extended Forecast for

5 Miles SSE Lamorinda CA

Flood Watch December 26, 05:06am until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 26, 05:06am until December 26, 10:00pm

    NOW until 10:00pm Fri

    Flood Watch

  • Today

    High: 54 °F

    Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 10pm.  Mostly cloudy, with a low around 43. Southwest wind around 7 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 52. North wind around 6 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 37. Light north northeast wind.

    Low: 37 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 51. North northeast wind 5 to 7 mph.

    High: 51 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Patchy frost before 7am.  Otherwise, sunny, with a high near 53.

    High: 53 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Areas of frost after 5am.  Otherwise, mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

Detailed Forecast

Today
A 40 percent chance of showers, mainly between 9am and 5pm. Partly sunny, with a high near 54. South wind 10 to 16 mph, with gusts as high as 30 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A 20 percent chance of showers before 10pm. Mostly cloudy, with a low around 43. Southwest wind around 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 52. North wind around 6 mph.
Saturday Night
Increasing clouds, with a low around 37. Light north northeast wind.
Sunday
Sunny, with a high near 51. North northeast wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 36.
Monday
Patchy frost before 7am. Otherwise, sunny, with a high near 53.
Monday Night
Areas of frost after 5am. Otherwise, mostly clear, with a low around 35.
Tuesday
Areas of frost before 8am. Otherwise, sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 41.
New Year's Day
A chance of showers. Cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Lamorinda CA
 37.8°N 122.13°W (Elev. 597 ft)
3:07 am PST Dec 26, 2025
5am PST Dec 26, 2025-6pm PST Jan 1, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database