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

Storm Systems Continue to Impact the Pacific Northwest; Lake Effect Snow Continues

A second Pacific cold front will cross the Pacific Northwest Wednesday followed by another atmospheric river. Each of these features will bring additional periods of gusty winds, mountain snow, and heavy to excessive rainfall with renewed flooding. Heavy lake effect snow continues into Tuesday east of Lakes Erie and Ontario. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Partly Cloudy

46°F

8°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 15 Dec 08:58 PM PST
Extended Forecast for

Mount Hamilton CA

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 54. North wind around 7 mph.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. Northwest wind around 6 mph.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain after 10pm. Mostly cloudy, with a low around 53. Light west northwest wind.

    Low: 53 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 59. West northwest wind 5 to 7 mph.

    High: 59 °F

    Chance Rain
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. Light and variable wind.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    Rain

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 4am. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a steady temperature around 54. North wind around 7 mph.
Tuesday
Mostly sunny, with a high near 63. Northwest wind around 6 mph.
Tuesday Night
A 40 percent chance of rain after 10pm. Mostly cloudy, with a low around 53. Light west northwest wind.
Wednesday
A 50 percent chance of rain before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 59. West northwest wind 5 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 47. Light and variable wind.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 49.
Friday
A chance of rain. Mostly cloudy, with a high near 56.
Friday Night
Rain likely, mainly before 4am. Mostly cloudy, with a low around 51.
Saturday
Rain likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 56.
Saturday Night
Rain likely. Mostly cloudy, with a low around 50.
Sunday
Rain likely. Mostly cloudy, with a high near 54.
Sunday Night
Rain likely. Mostly cloudy, with a low around 50.
Monday
A chance of rain. Mostly cloudy, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Hamilton CA
 37.35°N 121.64°W (Elev. 2398 ft)
Last Update:
12:27 pm PST Dec 15, 2025
Forecast Valid:
9pm PST Dec 15, 2025-6pm PST Dec 22, 2025
 
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