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

Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

45°F

7°C

Humidity 70%
Wind Speed NA 4 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 28 Dec 09:50 PM PST
Extended Forecast for

11 Miles NE Mount Hamilton CA

Cold Weather Advisory until December 29, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until December 29, 09:00am

    NOW until 9:00am Mon

    Cold Weather Advisory

  • Overnight

    Low: 33 °F

    Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 56. South wind around 6 mph becoming light and variable in the afternoon.

    High: 56 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 33. Light and variable wind becoming south southwest around 5 mph after midnight.

    Low: 33 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56. South southeast wind around 6 mph becoming east northeast in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. East wind 3 to 6 mph.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain after 10am. Partly sunny, with a high near 52. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.

    Low: 39 °F

    Rain Likely

  • New Year's Day

    New Year's Day: Rain likely. Mostly cloudy, with a high near 52.

    High: 52 °F

    Rain Likely

Detailed Forecast

Overnight
Widespread frost. Otherwise, clear, with a steady temperature around 33. East wind around 5 mph.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 56. South wind around 6 mph becoming light and variable in the afternoon.
Monday Night
Clear, with a low around 33. Light and variable wind becoming south southwest around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 56. South southeast wind around 6 mph becoming east northeast in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 36. East wind 3 to 6 mph.
Wednesday
A 40 percent chance of rain after 10am. Partly sunny, with a high near 52. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
New Year's Day
Rain likely. Mostly cloudy, with a high near 52.
Thursday Night
Rain likely. Mostly cloudy, with a low around 41.
Friday
Rain likely. Mostly cloudy, with a high near 54.
Friday Night
Rain likely. Mostly cloudy, with a low around 41.
Saturday
Rain likely. Mostly cloudy, with a high near 52.
Saturday Night
Rain likely. Mostly cloudy, with a low around 40.
Sunday
A chance of rain. Partly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NE Mount Hamilton CA
 37.46°N 121.5°W (Elev. 3310 ft)
Last Update:
12:27 am PST Dec 29, 2025
Forecast Valid:
5am PST Dec 29, 2025-6pm PST Jan 4, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation