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

Heavy Snow in the Cascades and Northern Rockies; Wintry Mix in the Northeast; High Winds in Southern California

Two more cold fronts will pass through the Northwest U.S. this week with heavy mountain snow continuing across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain across the Northeast U.S. today. High winds could blow down trees and power lines in the mountains of southern California this evening through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose, San Jose International Airport (KSJC)

Lat: 37.35917°NLon: 121.92417°WElev: 59.0ft.

Mostly Cloudy

57°F

14°C

Humidity 71%
Wind Speed NNW 12 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 07 Jan 03:53 PM PST
Extended Forecast for

San Jose International Airport CA

Extreme Cold Watch January 9, 01:00am until January 9, 09:00am
Click here for hazard details and duration
Extreme Cold Watch

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 40. West northwest wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 40 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 54. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Patchy frost before 1am, then areas of frost after 4am. Otherwise, mostly clear, with a low around 33. North wind 3 to 6 mph.

    Low: 33 °F

    Mostly Clear
    then Areas
    Frost

  • Friday

    Friday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 56. Light north wind.

    High: 56 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Patchy frost after 1am. Otherwise, mostly clear, with a low around 34. Light east wind.

    Low: 34 °F

    Clear then
    Patchy Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 59.

    High: 59 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 40. West northwest wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 54. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Thursday Night
Patchy frost before 1am, then areas of frost after 4am. Otherwise, mostly clear, with a low around 33. North wind 3 to 6 mph.
Friday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 56. Light north wind.
Friday Night
Patchy frost after 1am. Otherwise, mostly clear, with a low around 34. Light east wind.
Saturday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 59.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Mostly cloudy, with a high near 60.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Sunny, with a high near 62.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Jose International Airport CA
 37.38°N 121.91°W (Elev. 56 ft)
Last Update:
12:26 pm PST Jan 7, 2026
Forecast Valid:
4pm PST Jan 7, 2026-6pm PST Jan 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation