Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

48°F

9°C

Humidity 13%
Wind Speed NNE 9 MPH
Barometer NA
Dewpoint 1°F (-17°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 25 Jan 05:50 AM PST
Extended Forecast for

7 Miles ENE Danville CA

  • Today

    Today: Increasing clouds, with a high near 54. East northeast wind 5 to 8 mph becoming calm  in the afternoon.

    High: 54 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. Northeast wind 5 to 7 mph.

    Low: 42 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 57. East northeast wind around 7 mph.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. East wind around 6 mph.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57. East northeast wind around 7 mph.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 10pm.  Mostly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am.  Partly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 54. East northeast wind 5 to 8 mph becoming calm in the afternoon.
Tonight
Mostly cloudy, with a low around 42. Northeast wind 5 to 7 mph.
Monday
Sunny, with a high near 57. East northeast wind around 7 mph.
Monday Night
Partly cloudy, with a low around 40. East wind around 6 mph.
Tuesday
Mostly sunny, with a high near 57. East northeast wind around 7 mph.
Tuesday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 45.
Wednesday
A 20 percent chance of rain before 10am. Partly sunny, with a high near 56.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Partly sunny, with a high near 58.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Mostly cloudy, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Danville CA
 37.83°N 121.88°W (Elev. 1913 ft)
1:27 am PST Jan 25, 2026
6am PST Jan 25, 2026-6pm PST Jan 31, 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