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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

59°F

15°C

Humidity 28%
Wind Speed N 0 MPH
Barometer 30.4 in (1029.46 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 09 Jan 01:47 PM PST
Extended Forecast for

Mount Hamilton CA

Cold Weather Advisory January 10, 01:00am until January 10, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 52. Light northeast wind.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 35. Southeast wind 3 to 7 mph.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 54. Southeast wind 5 to 8 mph becoming light and variable in the afternoon.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42. East wind 5 to 7 mph.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 57. East northeast wind around 6 mph becoming light and variable in the afternoon.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 44.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 52. Light northeast wind.
Tonight
Mostly clear, with a low around 35. Southeast wind 3 to 7 mph.
Saturday
Mostly sunny, with a high near 54. Southeast wind 5 to 8 mph becoming light and variable in the afternoon.
Saturday Night
Partly cloudy, with a low around 42. East wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 57. East northeast wind around 6 mph becoming light and variable in the afternoon.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 58.
Monday Night
Clear, with a low around 44.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Clear, with a low around 45.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Clear, with a low around 46.
Thursday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Hamilton CA
 37.35°N 121.64°W (Elev. 2398 ft)
Last Update:
1:09 pm PST Jan 9, 2026
Forecast Valid:
2pm PST Jan 9, 2026-6pm PST Jan 15, 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