Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

64°F

18°C

Humidity 34%
Wind Speed NW 6 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 17 Apr 07:47 PM PDT
Extended Forecast for

Mount Hamilton CA

  • Tonight

    Tonight: Partly cloudy, with a low around 45. North wind around 6 mph becoming calm  after midnight.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50. West southwest wind around 5 mph becoming calm  in the evening.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 65. South southwest wind 3 to 8 mph.

    High: 65 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44. South wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers, mainly after 11am.  Partly sunny, with a high near 60. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Rain likely, mainly after 11pm.  Mostly cloudy, with a low around 47. Chance of precipitation is 70%.

    Low: 47 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 51.

    High: 51 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain.  Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 45. North wind around 6 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 65. Calm wind becoming south southwest around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 50. West southwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 65. South southwest wind 3 to 8 mph.
Sunday Night
Partly cloudy, with a low around 44. South wind 7 to 9 mph, with gusts as high as 18 mph.
Monday
A 40 percent chance of showers, mainly after 11am. Partly sunny, with a high near 60. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 51.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 44.
Wednesday
A chance of rain, mainly before 11am. Partly sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 42.
Friday
Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Hamilton CA
 37.35°N 121.64°W (Elev. 2398 ft)
1:26 pm PDT Apr 17, 2026
9pm PDT Apr 17, 2026-6pm PDT Apr 24, 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