National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

54°F

12°C

Humidity 91%
Wind Speed S 18 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 20 Jun 06:28 AM PDT
Extended Forecast for

Clayton CA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 79. West southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 79 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. West southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86. West southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 79. West southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 52. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 84. West southwest wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 54. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 86. West southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Clear, with a low around 55.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Clear, with a low around 56.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clayton CA
 37.94°N 121.96°W (Elev. 400 ft)
Last Update:
1:26 am PDT Jun 20, 2026
Forecast Valid:
7am PDT Jun 20, 2026-6pm PDT Jun 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation