Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. 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

10 Miles E Mount Hamilton CA

Cold Weather Advisory December 29, 01:00am until December 29, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  • Tonight

    Tonight: Widespread frost, mainly after midnight.  Otherwise, mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Frost

  • Monday

    Monday: Areas of frost before 9am.  Otherwise, sunny, with a high near 59. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 59 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Widespread frost, mainly after 5am.  Otherwise, clear, with a low around 32. Calm wind.

    Low: 32 °F

    Frost

  • Tuesday

    Tuesday: Widespread frost before 8am.  Otherwise, sunny, with a high near 61. Calm wind becoming east around 5 mph in the afternoon.

    High: 61 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Areas of frost before 7am.  Otherwise, mostly sunny, with a high near 59.

    High: 59 °F

    Areas Frost
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain.  Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

  • New Year's Day

    New Year's Day: Rain likely, mainly after 10am.  Mostly cloudy, with a high near 57.

    High: 57 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain Likely
    and Patchy
    Fog

Detailed Forecast

Tonight
Widespread frost, mainly after midnight. Otherwise, mostly clear, with a low around 30. Calm wind.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 59. Calm wind becoming east northeast around 5 mph in the afternoon.
Monday Night
Widespread frost, mainly after 5am. Otherwise, clear, with a low around 32. Calm wind.
Tuesday
Widespread frost before 8am. Otherwise, sunny, with a high near 61. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 34. Calm wind.
Wednesday
Areas of frost before 7am. Otherwise, mostly sunny, with a high near 59.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
New Year's Day
Rain likely, mainly after 10am. Mostly cloudy, with a high near 57.
Thursday Night
Rain likely. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 41.
Friday
Rain likely, mainly before 10am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 59.
Friday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 40.
Saturday
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 56.
Saturday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 40.
Sunday
A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...

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 28, 2025
10pm PST Dec 28, 2025-6pm PST Jan 4, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database