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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

44°F

7°C

Humidity 40%
Wind Speed N 14 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill37°F (3°C)
Last update 09 Jan 10:50 PM PST
Extended Forecast for

4 Miles ENE Danville CA

Cold Weather Advisory January 10, 01:00am until January 10, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 35. East northeast wind around 9 mph.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 54. East northeast wind 6 to 14 mph.

    High: 54 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. Northeast wind 7 to 11 mph.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 57. Northeast wind 3 to 8 mph.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. North northeast wind around 14 mph, with gusts as high as 18 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear
    then Patchy
    Frost

  • Tuesday

    Tuesday: Patchy frost before 7am. Otherwise, sunny, with a high near 60.

    High: 60 °F

    Patchy Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 35. East northeast wind around 9 mph.
Saturday
Partly sunny, with a high near 54. East northeast wind 6 to 14 mph.
Saturday Night
Mostly cloudy, with a low around 36. Northeast wind 7 to 11 mph.
Sunday
Mostly sunny, with a high near 57. Northeast wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 36. North northeast wind around 14 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 57.
Monday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 37.
Tuesday
Patchy frost before 7am. Otherwise, sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Danville CA
 37.85°N 121.94°W (Elev. 1362 ft)
Last Update:
1:09 pm PST Jan 9, 2026
Forecast Valid:
11pm PST Jan 9, 2026-6pm PST Jan 16, 2026
 
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Additional Resources

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Chance of Precipitation