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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Partly Cloudy

57°F

14°C

Humidity 62%
Wind Speed SSE 10 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 26 Dec 01:47 PM PST
Extended Forecast for

4 Miles SW Mount Hamilton CA

Flood Watch December 26, 02:59pm until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 26, 02:59pm until December 26, 10:00pm

    NOW until 10:00pm Fri

    Flood Watch

  • This Afternoon

    High: 53 °F

    Showers
    Likely

  • Tonight

    Tonight: A 40 percent chance of showers. Mostly cloudy, with a low around 37. West northwest wind 3 to 6 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 52. Northwest wind 3 to 6 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy frost after midnight. Otherwise, mostly clear, with a low around 32. North wind around 5 mph.

    Low: 32 °F

    Mostly Clear
    then Patchy
    Frost

  • Sunday

    Sunday: Areas of frost between 7am and 9am. Otherwise, sunny, with a high near 54. North wind around 6 mph.

    High: 54 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 10pm. Otherwise, clear, with a low around 33.

    Low: 33 °F

    Patchy Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 35.

    Low: 35 °F

    Clear

Detailed Forecast

This Afternoon
Showers likely, mainly after 3pm. Mostly cloudy, with a high near 53. South southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 40 percent chance of showers. Mostly cloudy, with a low around 37. West northwest wind 3 to 6 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 52. Northwest wind 3 to 6 mph.
Saturday Night
Patchy frost after midnight. Otherwise, mostly clear, with a low around 32. North wind around 5 mph.
Sunday
Areas of frost between 7am and 9am. Otherwise, sunny, with a high near 54. North wind around 6 mph.
Sunday Night
Patchy frost after 10pm. Otherwise, clear, with a low around 33.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 58.
Monday Night
Clear, with a low around 35.
Tuesday
Sunny, with a high near 61.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 40.
New Year's Day
A chance of showers. Mostly cloudy, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mount Hamilton CA
 37.3°N 121.69°W (Elev. 1401 ft)
Last Update:
12:27 pm PST Dec 26, 2025
Forecast Valid:
2pm PST Dec 26, 2025-6pm PST Jan 1, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation