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 >

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

Mount Hamilton CA

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

    NOW until 9:00am Mon

    Cold Weather Advisory

  • Today

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 43. Calm wind becoming east southeast around 6 mph after midnight.

    Low: 43 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59. South wind around 6 mph.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 47. East southeast wind around 7 mph.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 4pm.  Partly sunny, with a high near 52. East southeast wind 6 to 9 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain.  Low around 45. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Rain

  • New Year's Day

    New Year's Day: Rain.  High near 52. Chance of precipitation is 80%.

    High: 52 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 57. East southeast wind 5 to 7 mph becoming calm in the afternoon.
Tonight
Clear, with a low around 43. Calm wind becoming east southeast around 6 mph after midnight.
Tuesday
Mostly sunny, with a high near 59. South wind around 6 mph.
Tuesday Night
Mostly cloudy, with a low around 47. East southeast wind around 7 mph.
Wednesday
Rain likely, mainly after 4pm. Partly sunny, with a high near 52. East southeast wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 45. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
New Year's Day
Rain. High near 52. Chance of precipitation is 80%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 48.
Friday
Rain likely. Mostly cloudy, with a high near 52.
Friday Night
Rain likely. Mostly cloudy, with a low around 45.
Saturday
Rain likely. Mostly cloudy, with a high near 50.
Saturday Night
Rain likely. Mostly cloudy, with a low around 43.
Sunday
A chance of rain. Partly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Hamilton CA
 37.35°N 121.64°W (Elev. 2398 ft)
6:44 am PST Dec 29, 2025
7am PST Dec 29, 2025-6pm PST Jan 4, 2026
 
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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