Critical to Extremely Critical Fire Weather Conditions in Southern California; Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario

Critical to extremely critical fire weather conditions are forecast for coastal southern California through Wednesday due to moderate to locally strong Santa Ana winds. Particularly Dangerous Situation Red Flag Warnings have been issued. Across the Great Lakes, heavy lake effect snow is expected downwind of Lakes Erie and Ontario from this afternoon into late Wednesday night. Read More >

Current conditions at

Mt. Diablo (SJS02)

Lat: 37.881698°NLon: 121.914155°WElev: 3849.0ft.

NA

35°F

2°C

Humidity 50%
Wind Speed N 18 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Wind Chill24°F (-4°C)
Last update 13 Jan 10:55 AM PST
Extended Forecast for

4 Miles SSE Clayton CA

  • Today

    Today: Sunny, with a high near 49. North northeast wind 13 to 15 mph, with gusts as high as 20 mph.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 39. North wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50. North northeast wind around 7 mph.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 37. Light and variable wind.

    Low: 37 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 51. East northeast wind around 6 mph.

    High: 51 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 49. North northeast wind 13 to 15 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 39. North wind 11 to 14 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 50. North northeast wind around 7 mph.
Tuesday Night
Clear, with a low around 37. Light and variable wind.
Wednesday
Sunny, with a high near 51. East northeast wind around 6 mph.
Wednesday Night
Clear, with a low around 38.
Thursday
Sunny, with a high near 51.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 49.
Friday Night
Mostly clear, with a low around 39.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 47.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
7:38 am PST Jan 13, 2025
10am PST Jan 13, 2025-6pm PST Jan 19, 2025
 
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Additional Resources

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