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

  • Today

    Today: Mostly sunny, with a high near 67. North wind 3 to 6 mph.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 54. West northwest wind around 5 mph becoming calm  after midnight.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 70. Calm wind becoming north northeast around 6 mph in the morning.

    High: 70 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 68. Light and variable wind becoming west southwest 5 to 7 mph in the morning.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Cloudy, with a low around 52.

    Low: 52 °F

    Cloudy

  • Sunday

    Sunday: A 10 percent chance of rain after 4pm.  Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before 10pm.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 67. North wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 54. West northwest wind around 5 mph becoming calm after midnight.
Friday
Partly sunny, with a high near 70. Calm wind becoming north northeast around 6 mph in the morning.
Friday Night
Mostly cloudy, with a low around 55. Calm wind.
Saturday
Partly sunny, with a high near 68. Light and variable wind becoming west southwest 5 to 7 mph in the morning.
Saturday Night
Cloudy, with a low around 52.
Sunday
A 10 percent chance of rain after 4pm. Mostly cloudy, with a high near 62.
Sunday Night
A slight chance of rain before 10pm. Mostly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton CA
 37.91°N 121.96°W (Elev. 1299 ft)
12:26 am PST Feb 26, 2026
9am 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