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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

36°F

2°C

Humidity 100%
Wind Speed WNW 12 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill28°F (-2°C)
Last update 27 Dec 01:50 AM PST
Extended Forecast for

8 Miles N Livermore Municipal CA

  • Overnight

    Overnight: A 20 percent chance of rain. Partly cloudy, with a low around 41. West wind around 10 mph.

    Low: 41 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a steady temperature around 43. West wind around 8 mph becoming north in the afternoon.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. Northwest wind around 6 mph.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 45. North wind around 7 mph.

    High: 45 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 36. Northeast wind around 6 mph.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Monday

    Monday: Patchy frost before 7am. Otherwise, sunny, with a high near 48.

    High: 48 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of rain. Partly cloudy, with a low around 41. West wind around 10 mph.
Saturday
Mostly sunny, with a steady temperature around 43. West wind around 8 mph becoming north in the afternoon.
Saturday Night
Partly cloudy, with a low around 38. Northwest wind around 6 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 45. North wind around 7 mph.
Sunday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 36. Northeast wind around 6 mph.
Monday
Patchy frost before 7am. Otherwise, sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Mostly sunny, with a high near 49.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 42.
New Year's Day
A chance of rain. Mostly cloudy, with a high near 48.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 44.
Friday
A chance of rain. Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles N Livermore Municipal CA
 37.82°N 121.82°W (Elev. 1736 ft)
Last Update:
12:27 am PST Dec 27, 2025
Forecast Valid:
2am PST Dec 27, 2025-6pm PST Jan 2, 2026
 
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