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

Severe Weather in the Central U.S.; Critical Fire Weather in the Southern Plains

Severe thunderstorms are expected to form today from northern Oklahoma into southern Minnesota. Very large hail and tornadoes will be the initial threats this afternoon, then transition into a wind threat tonight. Gusty winds, warm temperatures, and very dry conditions will create a Critical Risk of fire weather across portions of the southern Plains today. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Partly Cloudy

73°F

23°C

Humidity 33%
Wind Speed NNW 10 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 23 Apr 03:47 PM PDT
Extended Forecast for

Mount Hamilton CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. Northwest wind 5 to 8 mph becoming light and variable after midnight.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 58. Southwest wind 3 to 7 mph.

    High: 58 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. West southwest wind around 7 mph.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 52. Southwest wind 6 to 8 mph.

    High: 52 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 43. West southwest wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 43 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 20 percent chance of rain before 11am. Mostly sunny, with a high near 53.

    High: 53 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Sunday Night

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

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 44. Northwest wind 5 to 8 mph becoming light and variable after midnight.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 58. Southwest wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 42. West southwest wind around 7 mph.
Saturday
Partly sunny, with a high near 52. Southwest wind 6 to 8 mph.
Saturday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 43. West southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Sunday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Sunny, with a high near 63.
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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:
2:57 pm PDT Apr 23, 2026
Forecast Valid:
4pm PDT Apr 23, 2026-6pm PDT Apr 30, 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