Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

NA

54°F

12°C

Humidity 17%
Wind Speed N 8 MPH
Barometer NA
Dewpoint 11°F (-12°C)
Visibility NA
Last update 29 Jan 07:50 AM PST
Extended Forecast for

7 Miles ENE Danville CA

  • Today

    Today: Sunny, with a high near 58. North northeast wind around 7 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 46. Northeast wind 3 to 6 mph.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 60. East northeast wind around 7 mph.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45. East northeast wind 6 to 8 mph.

    Low: 45 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 61. East northeast wind 7 to 9 mph.

    High: 61 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Sunday Night

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

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 58. North northeast wind around 7 mph.
Tonight
Partly cloudy, with a low around 46. Northeast wind 3 to 6 mph.
Friday
Partly sunny, with a high near 60. East northeast wind around 7 mph.
Friday Night
Mostly cloudy, with a low around 45. East northeast wind 6 to 8 mph.
Saturday
Partly sunny, with a high near 61. East northeast wind 7 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Clear, with a low around 44.
Wednesday
Sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Danville CA
 37.83°N 121.88°W (Elev. 1913 ft)
12:26 am PST Jan 29, 2026
8am PST Jan 29, 2026-6pm PST Feb 4, 2026
 
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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