Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through Monday. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

NA

61°F

16°C

Humidity 42%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 01 Feb 02:20 PM PST
Extended Forecast for

4 Miles SSE Clayton CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 60. North northwest wind around 6 mph.

    High: 60 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 47. North wind around 6 mph.

    Low: 47 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 60. North wind around 6 mph.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. Northeast wind around 6 mph becoming south in the evening.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61. Northeast wind around 8 mph.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Wednesday Night

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

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 60. North northwest wind around 6 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 47. North wind around 6 mph.
Monday
Sunny, with a high near 60. North wind around 6 mph.
Monday Night
Mostly clear, with a low around 48. Northeast wind around 6 mph becoming south in the evening.
Tuesday
Sunny, with a high near 61. Northeast wind around 8 mph.
Tuesday Night
Clear, with a low around 46.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
1:33 pm PST Feb 1, 2026
2pm PST Feb 1, 2026-6pm PST Feb 7, 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