Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

50°F

10°C

Humidity 66%
Wind Speed NA 5 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 29 Dec 06:47 PM PST
Extended Forecast for

10 Miles E Mount Hamilton CA

Cold Weather Advisory December 30, 01:00am until December 30, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  • Tonight

    Tonight: Clear, with a low around 33. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 33 °F

    Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 61. East southeast wind 3 to 6 mph.

    High: 61 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 39. East southeast wind 3 to 5 mph.

    Low: 39 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain, mainly after 10am.  High near 56. Southeast wind 5 to 7 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Patchy fog after 10pm. Low around 41. South southeast wind 8 to 10 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain and
    Patchy Fog

  • New Year's Day

    New Year's Day: Rain.  High near 57. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 57 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before 4am.  Mostly cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Rain Likely

  • Friday

    Friday: Rain, mainly after 10am.  Mostly cloudy, with a high near 58.

    High: 58 °F

    Rain

  • Friday Night

    Friday Night: Rain.  Mostly cloudy, with a low around 39.

    Low: 39 °F

    Rain

Detailed Forecast

Tonight
Clear, with a low around 33. North northeast wind around 5 mph becoming calm in the evening.
Tuesday
Increasing clouds, with a high near 61. East southeast wind 3 to 6 mph.
Tuesday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 39. East southeast wind 3 to 5 mph.
Wednesday
Rain, mainly after 10am. High near 56. Southeast wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Patchy fog after 10pm. Low around 41. South southeast wind 8 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
New Year's Day
Rain. High near 57. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain likely, mainly before 4am. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Friday
Rain, mainly after 10am. Mostly cloudy, with a high near 58.
Friday Night
Rain. Mostly cloudy, with a low around 39.
Saturday
Rain likely. Mostly cloudy, with a high near 55.
Saturday Night
Rain likely. Mostly cloudy, with a low around 36.
Sunday
A chance of rain. Partly sunny, with a high near 56.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 37.
Monday
A chance of rain. Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles E Mount Hamilton CA
 37.33°N 121.47°W (Elev. 2113 ft)
12:27 pm PST Dec 29, 2025
7pm PST Dec 29, 2025-6pm PST Jan 5, 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