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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Mostly Cloudy

59°F

15°C

Humidity 54%
Wind Speed SW 8 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 12 Apr 07:47 PM PDT
Extended Forecast for

Mount Hamilton CA

  • Overnight

    Overnight: A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 38. Light west wind.

    Low: 38 °F

    Slight Chance
    Rain

  • Monday

    Monday: Mostly sunny, with a high near 50. Light west northwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. West wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55. West wind around 7 mph.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40. West wind 6 to 9 mph.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

Detailed Forecast

Overnight
A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 38. Light west wind.
Monday
Mostly sunny, with a high near 50. Light west northwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Partly cloudy, with a low around 40. West wind 6 to 9 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 55. West wind around 7 mph.
Tuesday Night
Mostly clear, with a low around 40. West wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 56.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Sunny, with a high near 55.
Thursday Night
Clear, with a low around 41.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 44.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
A slight chance of rain. Mostly sunny, with a high near 61.
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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 am PDT Apr 13, 2026
Forecast Valid:
2am PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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