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

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

58°F

14°C

Humidity 84%
Wind Speed SSW 8 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 14 Aug 12:00 AM PDT
Extended Forecast for

24 Miles ESE Mount Hamilton CA

  • Overnight

    Overnight: Mostly clear, with a low around 58. Southwest wind around 10 mph, with gusts as high as 18 mph.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 58. West southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 84. West southwest wind around 7 mph becoming southeast in the morning.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. West wind 6 to 8 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 58. Southwest wind around 10 mph, with gusts as high as 18 mph.
Friday
Sunny, with a high near 80. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 58. West southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 84. West southwest wind around 7 mph becoming southeast in the morning.
Saturday Night
Mostly clear, with a low around 60. West wind 6 to 8 mph.
Sunday
Sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
24 Miles ESE Mount Hamilton CA
 37.26°N 121.22°W (Elev. 1512 ft)
Last Update:
11:31 pm PDT Aug 13, 2026
Forecast Valid:
12am PDT Aug 14, 2026-6pm PDT Aug 20, 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