Fire Weather Concerns for the Plains; Record Warmth Spreads

Dry and breezy conditions prevail across the High Plains where elevated to locally critical conditions continue through today. Meanwhile, record warmth increases and spreads across the South, Southwest and into southern California into this last weekend of February. Meanwhile, a fast moving system moves across the central Plains then off the mid-Atlantic by this evening. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

N/A

Humidity 99%
Wind Speed N 0 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 20 Feb 03:25 AM PST
Extended Forecast for

Clayton CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 66. North wind around 6 mph.

    High: 66 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 55. North wind around 5 mph becoming calm  in the evening.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71. Northeast wind 3 to 6 mph.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 57. Light east wind.

    Low: 57 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 72. Light and variable wind becoming west northwest 5 to 7 mph in the morning.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A slight chance of rain.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    Rain

  • Monday

    Monday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 66. North wind around 6 mph.
Tonight
Partly cloudy, with a low around 55. North wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 71. Northeast wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 57. Light east wind.
Saturday
Mostly sunny, with a high near 72. Light and variable wind becoming west northwest 5 to 7 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Mostly cloudy, with a high near 63.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Mostly cloudy, with a low around 48.
Wednesday
Sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton CA
 37.91°N 121.96°W (Elev. 1299 ft)
12:26 pm PST Feb 26, 2026
1pm PST Feb 26, 2026-6pm PST Mar 4, 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