Dangerous Fire Conditions in the Southern High Plains; Severe Weather from the Great Lakes into Central/Southern Plains; Late-Season Mountain Snow

Dry and windy conditions will produce dangerous fire weather conditions across the southern High Plains into the Southwest. Severe storms, including very large hail, strong tornadoes, and winds, are expected from the Great Lakes into the central/southern Plains. Heavy late-season snow and cold temperatures are expected in the northern to central Rockies. Heat is spreading across the eastern U.S.. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

NA

55°F

13°C

Humidity 31%
Wind Speed WNW 6 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 18 May 03:28 AM PDT
Extended Forecast for

Clayton CA

  • Today

    Today: Sunny, with a high near 88. Breezy, with a north wind 18 to 23 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 41 mph.

    High: 88 °F

    Sunny and
    Breezy then
    Sunny

  • Tonight

    Tonight: Clear, with a low around 54. North northwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 54 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 56. Northwest wind 5 to 8 mph becoming southwest after midnight.

    Low: 56 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 88. Breezy, with a north wind 18 to 23 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 41 mph.
Tonight
Clear, with a low around 54. North northwest wind 5 to 7 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 93. Calm wind becoming north 5 to 7 mph in the afternoon.
Tuesday Night
Clear, with a low around 56. Northwest wind 5 to 8 mph becoming southwest after midnight.
Wednesday
Sunny, with a high near 94. Calm wind becoming west 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 54.
Thursday
Sunny, with a high near 94.
Thursday Night
Clear, with a low around 53.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton CA
 37.96°N 121.97°W (Elev. 249 ft)
2:56 am PDT May 18, 2026
4am PDT May 18, 2026-6pm PDT May 24, 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