Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Overcast

59°F

15°C

Humidity 58%
Wind Speed W 4 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 20 Jan 03:50 PM PST
Extended Forecast for

7 Miles NNW Mount Hamilton CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. South wind 3 to 6 mph.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 59. Southeast wind around 5 mph becoming calm  in the morning.

    High: 59 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45. Calm wind becoming southeast around 5 mph after midnight.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 56. Northwest wind 3 to 5 mph.

    High: 56 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. West northwest wind around 6 mph becoming southwest after midnight.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 49. South wind 3 to 6 mph.
Wednesday
Mostly cloudy, with a high near 59. Southeast wind around 5 mph becoming calm in the morning.
Wednesday Night
Mostly cloudy, with a low around 45. Calm wind becoming southeast around 5 mph after midnight.
Thursday
Partly sunny, with a high near 56. Northwest wind 3 to 5 mph.
Thursday Night
Partly cloudy, with a low around 42. West northwest wind around 6 mph becoming southwest after midnight.
Friday
Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Partly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNW Mount Hamilton CA
 37.43°N 121.69°W (Elev. 3619 ft)
7:24 pm PST Jan 20, 2026
8pm PST Jan 20, 2026-6pm PST Jan 27, 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