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

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

50°F

10°C

Humidity 73%
Wind Speed NNE 4 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Wind Chill49°F (9°C)
Last update 28 Jan 07:28 AM PST
Extended Forecast for

2 Miles NW Brentwood CA

  • Today

    Today: Mostly sunny, with a high near 60. Calm wind becoming north northwest 5 to 7 mph in the morning.

    High: 60 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy dense fog after 5am. Otherwise, increasing clouds, with a low around 41. Light west wind.

    Low: 41 °F

    Mostly Clear
    then Patchy
    Dense Fog

  • Thursday

    Thursday: Patchy fog between 7am and 9am. Otherwise, mostly sunny, with a high near 60. Calm wind becoming north around 5 mph in the afternoon.

    High: 60 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 4am. Otherwise, increasing clouds, with a low around 41. Calm wind.

    Low: 41 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 61. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 61 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 60. Calm wind becoming north northwest 5 to 7 mph in the morning.
Tonight
Patchy dense fog after 5am. Otherwise, increasing clouds, with a low around 41. Light west wind.
Thursday
Patchy fog between 7am and 9am. Otherwise, mostly sunny, with a high near 60. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Patchy fog after 4am. Otherwise, increasing clouds, with a low around 41. Calm wind.
Friday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 61. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Mostly cloudy, with a high near 61.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 62.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Brentwood CA
 37.95°N 121.71°W (Elev. 82 ft)
Last Update:
4:54 am PST Jan 28, 2026
Forecast Valid:
7am PST Jan 28, 2026-6pm PST Feb 3, 2026
 
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Additional Resources

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