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

Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Partly Cloudy

64°F

18°C

Humidity 52%
Wind Speed NW 8 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 14 Apr 01:47 PM PDT
Extended Forecast for

Mount Hamilton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 55. West wind 6 to 8 mph.

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 39. West wind 6 to 9 mph.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 55. West wind 6 to 8 mph.

    High: 55 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40. West northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 54. North northwest wind 9 to 14 mph, with gusts as high as 26 mph.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Friday Night

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

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 55. West wind 6 to 8 mph.
Tonight
Mostly clear, with a low around 39. West wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 55. West wind 6 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 40. West northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 54. North northwest wind 9 to 14 mph, with gusts as high as 26 mph.
Thursday Night
Clear, with a low around 42.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
A slight chance of rain. Mostly sunny, with a high near 61.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 45.
Monday
A chance of rain. Partly sunny, with a high near 52.
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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:
2:16 pm PDT Apr 14, 2026
Forecast Valid:
2pm PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation