Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Port Chicago (PCOC1)

Lat: 38.056°NLon: 122.0395°WElev: 0.0ft.

NA

54°F

12°C

Humidity NA
Wind Speed NNE 1 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

3 Miles WNW Pittsburg CA

  • Tonight

    Tonight: Areas of dense fog after 9pm.  Otherwise, partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Areas Dense
    Fog

  • M.L.King Day

    M.L.King Day: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 59. East northeast wind 3 to 6 mph.

    High: 59 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 41. Light east northeast wind.

    Low: 41 °F

    Patchy Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 60. Northeast wind around 6 mph.

    High: 60 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 61.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 9pm.  Otherwise, mostly clear, with a low around 44.

    Low: 44 °F

    Patchy Fog

Detailed Forecast

Tonight
Areas of dense fog after 9pm. Otherwise, partly cloudy, with a low around 42. Calm wind.
M.L.King Day
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 59. East northeast wind 3 to 6 mph.
Monday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 41. Light east northeast wind.
Tuesday
Partly sunny, with a high near 60. Northeast wind around 6 mph.
Tuesday Night
Mostly cloudy, with a low around 43. Calm wind.
Wednesday
Mostly cloudy, with a high near 59.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 61.
Thursday Night
Patchy fog after 9pm. Otherwise, mostly clear, with a low around 44.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 59.
Friday Night
Patchy fog. Otherwise, mostly clear, with a low around 44.
Saturday
Patchy fog. Otherwise, partly sunny, with a high near 59.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 43.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Pittsburg CA
 38.03°N 121.93°W (Elev. 30 ft)
12:26 pm PST Jan 18, 2026
6pm PST Jan 18, 2026-6pm PST Jan 25, 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