Tracking Areas of Winter Weather and Heavy Rainfall

A cold front will move through the Great Lakes and Northeast U.S. today, bringing areas of snow and snow squalls which can bring rapid reductions to visibility and slick roads. A storm system will shift from the northern Gulf Coast through the Southeast U.S. today through Friday with areas of heavy to excessive rainfall and light snow further north. Heavy snow is also expected in the Rockies. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

38°F

3°C

Humidity 98%
Wind Speed ENE 5 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 04 Dec 10:00 AM PST
Extended Forecast for

19 Miles ENE Mount Hamilton CA

  • Today

    Today: Sunny, with a high near 49. Northeast wind 3 to 6 mph.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a steady temperature around 46. Light northwest wind.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54. Light and variable wind becoming north northeast around 6 mph in the morning.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55. Calm wind becoming north around 6 mph in the morning.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 49. Northeast wind 3 to 6 mph.
Tonight
Mostly clear, with a steady temperature around 46. Light northwest wind.
Friday
Sunny, with a high near 54. Light and variable wind becoming north northeast around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 46. Calm wind.
Saturday
Sunny, with a high near 55. Calm wind becoming north around 6 mph in the morning.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Mostly sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles ENE Mount Hamilton CA
 37.42°N 121.32°W (Elev. 2201 ft)
1:21 am PST Dec 4, 2025
10am PST Dec 4, 2025-6pm PST Dec 10, 2025
 
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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