Current conditions at

DIABLO GRANDE (DBLC1)

Lat: 37.32927°NLon: 121.29538°WElev: 1861.0ft.

NA

92°F

33°C

Humidity 19%
Wind Speed E 7 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Heat Index88°F (31°C)
Last update 05 Oct 01:00 PM PDT
Extended Forecast for

20 Miles E Mount Hamilton CA

Heat Advisory October 5, 01:16pm until October 9, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 5, 01:16pm until October 9, 10:00pm

    NOW until 10:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 76. West northwest wind 6 to 9 mph.

    Low: 76 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. West northwest wind 5 to 13 mph becoming north in the morning. Winds could gust as high as 21 mph.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 75. North northwest wind 5 to 9 mph becoming west in the evening. Winds could gust as high as 20 mph.

    Low: 75 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Calm wind becoming north 5 to 9 mph in the afternoon.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 73.

    Low: 73 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 74.

    Low: 74 °F

    Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 94. North wind around 10 mph.
Tonight
Clear, with a low around 76. West northwest wind 6 to 9 mph.
Tuesday
Sunny, with a high near 95. West northwest wind 5 to 13 mph becoming north in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Clear, with a low around 75. North northwest wind 5 to 9 mph becoming west in the evening. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 94. Calm wind becoming north 5 to 9 mph in the afternoon.
Wednesday Night
Clear, with a low around 73.
Thursday
Sunny, with a high near 93.
Thursday Night
Clear, with a low around 74.
Friday
Sunny, with a high near 93.
Friday Night
Clear, with a low around 68.
Saturday
Sunny, with a high near 85.
Saturday Night
Clear, with a low around 59.
Sunday
Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
20 Miles E Mount Hamilton CA
 37.38°N 121.28°W (Elev. 1401 ft)
11:31 am PDT Oct 5, 2026
1pm PDT Oct 5, 2026-6pm PDT Oct 11, 2026
 
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