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

Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

63°F

17°C

Humidity 27%
Wind Speed NW 16 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 16 Apr 10:47 AM PDT
Extended Forecast for

Mount Hamilton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 55. North wind around 15 mph, with gusts as high as 28 mph.

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 40. North wind 14 to 17 mph, with gusts as high as 31 mph.

    Low: 40 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 60. Northwest wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. North wind 3 to 7 mph.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Monday

    Monday: A chance of rain. Partly sunny, with a high near 57.

    High: 57 °F

    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 55. North wind around 15 mph, with gusts as high as 28 mph.
Tonight
Clear, with a low around 40. North wind 14 to 17 mph, with gusts as high as 31 mph.
Friday
Sunny, with a high near 60. Northwest wind 7 to 11 mph, with gusts as high as 18 mph.
Friday Night
Partly cloudy, with a low around 45. North wind 3 to 7 mph.
Saturday
Mostly sunny, with a high near 66. Calm wind becoming south southeast around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
Partly sunny, with a high near 64.
Sunday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 46.
Monday
A chance of rain. Partly sunny, with a high near 57.
Monday Night
A chance of rain. Mostly cloudy, with a low around 45.
Tuesday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 52.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 44.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 54.
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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:
1:26 pm PDT Apr 16, 2026
Forecast Valid:
1pm PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation