Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

54°F

12°C

Humidity 42%
Wind Speed NNE 4 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 21 Jan 04:28 AM PST
Extended Forecast for

2 Miles WNW Oakley CA

  • Today

    Today: Widespread dense fog before 3pm.  Otherwise, cloudy, with a high near 54. Light northeast wind.

    High: 54 °F

    Dense Fog

  • Tonight

    Tonight: Patchy fog between 3am and 4am.  Otherwise, cloudy, with a low around 49. Light and variable wind.

    Low: 49 °F

    Cloudy then
    Patchy Fog

  • Thursday

    Thursday: Widespread dense fog, mainly before 7am.  Otherwise, mostly cloudy, with a high near 61. West wind 3 to 5 mph.

    High: 61 °F

    Dense Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 5am.  Otherwise, partly cloudy, with a low around 47. Southwest wind around 6 mph.

    Low: 47 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 57. Light and variable wind becoming north around 5 mph in the afternoon.

    High: 57 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

Detailed Forecast

Today
Widespread dense fog before 3pm. Otherwise, cloudy, with a high near 54. Light northeast wind.
Tonight
Patchy fog between 3am and 4am. Otherwise, cloudy, with a low around 49. Light and variable wind.
Thursday
Widespread dense fog, mainly before 7am. Otherwise, mostly cloudy, with a high near 61. West wind 3 to 5 mph.
Thursday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 47. Southwest wind around 6 mph.
Friday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 57. Light and variable wind becoming north around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Mostly cloudy, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Partly sunny, with a high near 56.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Mostly cloudy, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Oakley CA
 38.01°N 121.75°W (Elev. 13 ft)
2:13 am PST Jan 21, 2026
5am PST Jan 21, 2026-6pm PST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database