Lake Effect Snow in the Lower Great Lakes; Rain and High Elevation Snow in the West

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest Thursday afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

47°F

8°C

Humidity 80%
Wind Speed NNE 9 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 11 Feb 11:28 PM PST
Extended Forecast for

Brentwood CA

  • Tonight

    Tonight: A 30 percent chance of rain.  Mostly cloudy, with a low around 45. Light and variable wind.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Chance Rain

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 61. North northwest wind 3 to 6 mph.

    High: 61 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43. West wind 3 to 5 mph.

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 64. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 64 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43. South southwest wind 3 to 5 mph.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 60.

    High: 60 °F

    Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 10pm.  Cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly after 10am.  Mostly cloudy, with a high near 59.

    High: 59 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain.  Cloudy, with a low around 48.

    Low: 48 °F

    Rain

Detailed Forecast

Tonight
A 30 percent chance of rain. Mostly cloudy, with a low around 45. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 61. North northwest wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 43. West wind 3 to 5 mph.
Friday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 43. South southwest wind 3 to 5 mph.
Saturday
Cloudy, with a high near 60.
Saturday Night
A 30 percent chance of rain after 10pm. Cloudy, with a low around 46.
Sunday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 59.
Sunday Night
Rain. Cloudy, with a low around 48.
Washington's Birthday
Rain. Cloudy, with a high near 55.
Monday Night
Rain. Mostly cloudy, with a low around 44.
Tuesday
Rain likely. Mostly cloudy, with a high near 54.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 41.
Wednesday
Rain likely. Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Brentwood CA
 37.93°N 121.7°W (Elev. 75 ft)
11:37 pm PST Feb 11, 2026
11pm PST Feb 11, 2026-6pm PST Feb 18, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database