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

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

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

NA

44°F

7°C

Humidity 100%
Wind Speed S 12 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Wind Chill38°F (3°C)
Last update 27 Dec 02:28 AM PST
Extended Forecast for

3 Miles NE Brentwood CA

  • Overnight

    Overnight: A 20 percent chance of rain. Partly cloudy, with a low around 45. West wind around 6 mph.

    Low: 45 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 50. North northwest wind 5 to 7 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. West northwest wind around 5 mph.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 49. North wind around 6 mph.

    High: 49 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain. Partly cloudy, with a low around 45. West wind around 6 mph.
Saturday
Mostly sunny, with a high near 50. North northwest wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 39. West northwest wind around 5 mph.
Sunday
Sunny, with a high near 49. North wind around 6 mph.
Sunday Night
Mostly clear, with a low around 37. Calm wind.
Monday
Sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 41.
New Year's Day
A chance of rain. Cloudy, with a high near 50.
Thursday Night
A chance of rain. Cloudy, with a low around 44.
Friday
A chance of rain. Partly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Brentwood CA
 37.96°N 121.65°W (Elev. 20 ft)
Last Update:
12:27 am PST Dec 27, 2025
Forecast Valid:
2am PST Dec 27, 2025-6pm PST Jan 2, 2026
 
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Additional Resources

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Chance of Precipitation