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

Hazardous Weather Conditions

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

90°F

32°C

Humidity 21%
Wind Speed SW 6 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Heat Index86°F (30°C)
Last update 04 Oct 05:28 PM PDT
Extended Forecast for

3 Miles ENE Clayton CA

Heat Advisory October 4, 08:49pm until October 7, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 4, 08:49pm until October 7, 10:00pm

    NOW until 10:00pm Wed

    Heat Advisory

  • Tonight

    Low: 67 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 93. Light and variable wind becoming northwest around 6 mph in the afternoon.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 68. West southwest wind around 7 mph.

    Low: 68 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. West southwest wind around 6 mph becoming light and variable.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 68. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 68 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 67. West southwest wind around 6 mph.
Monday
Sunny, with a high near 93. Light and variable wind becoming northwest around 6 mph in the afternoon.
Monday Night
Clear, with a low around 68. West southwest wind around 7 mph.
Tuesday
Sunny, with a high near 94. West southwest wind around 6 mph becoming light and variable.
Tuesday Night
Clear, with a low around 68. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Clear, with a low around 64.
Thursday
Sunny, with a high near 89.
Thursday Night
Clear, with a low around 62.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Clayton CA
 37.95°N 121.88°W (Elev. 1358 ft)
Last Update:
1:26 pm PDT Oct 4, 2026
Forecast Valid:
8pm PDT Oct 4, 2026-6pm PDT Oct 11, 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