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 / Reid / Hillv (KRHV)

Lat: 37.33333°NLon: 121.81667°WElev: 135.0ft.

Partly Cloudy

55°F

13°C

Humidity 71%
Wind Speed NNW 10 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 07 Jan 03:47 PM PST
Extended Forecast for

10 Miles E Mount Hamilton 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: Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 30. West wind around 8 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Partly Cloudy
    then Frost

  • Thursday

    Thursday: Widespread frost before 9am. Otherwise, sunny, with a high near 48. North northwest wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 48 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Widespread frost after 2am. Otherwise, mostly clear, with a low around 27. North northwest wind 5 to 8 mph, with gusts as high as 21 mph.

    Low: 27 °F

    Clear then
    Frost

  • Friday

    Friday: Widespread frost before 7am. Otherwise, sunny, with a high near 53. Calm wind becoming east around 5 mph in the afternoon.

    High: 53 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Widespread frost, mainly after 11pm. Otherwise, mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Frost

  • Saturday

    Saturday: Areas of frost before 9am. Otherwise, sunny, with a high near 57.

    High: 57 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Areas of frost between 10pm and midnight. Otherwise, partly cloudy, with a low around 32.

    Low: 32 °F

    Areas Frost
    then Partly
    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 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 30. West wind around 8 mph, with gusts as high as 20 mph.
Thursday
Widespread frost before 9am. Otherwise, sunny, with a high near 48. North northwest wind 8 to 14 mph, with gusts as high as 25 mph.
Thursday Night
Widespread frost after 2am. Otherwise, mostly clear, with a low around 27. North northwest wind 5 to 8 mph, with gusts as high as 21 mph.
Friday
Widespread frost before 7am. Otherwise, sunny, with a high near 53. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Widespread frost, mainly after 11pm. Otherwise, mostly clear, with a low around 29. Calm wind.
Saturday
Areas of frost before 9am. Otherwise, sunny, with a high near 57.
Saturday Night
Areas of frost between 10pm and midnight. Otherwise, partly cloudy, with a low around 32.
Sunday
Partly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Areas of frost before 7am. Otherwise, sunny, with a high near 61.
Monday Night
Patchy frost. Otherwise, clear, with a low around 36.
Tuesday
Areas of frost. Otherwise, sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles E Mount Hamilton CA
 37.33°N 121.47°W (Elev. 2113 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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