Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

70°F

21°C

Humidity 28%
Wind Speed NW 3 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 18 May 09:55 PM PDT
Extended Forecast for

4 Miles S Mount Hamilton CA

  • Overnight

    Overnight: Clear, with a low around 52. North wind around 6 mph.

    Low: 52 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. North northwest wind 5 to 7 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 57. North northwest wind 5 to 9 mph becoming calm  after midnight. Winds could gust as high as 18 mph.

    Low: 57 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 52. North wind around 6 mph.
Tuesday
Sunny, with a high near 74. North northwest wind 5 to 7 mph.
Tuesday Night
Clear, with a low around 57. North northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 78. Calm wind becoming west southwest around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 56. West wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 56.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 49.
Memorial Day
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Mount Hamilton CA
 37.28°N 121.63°W (Elev. 2831 ft)
11:27 pm PDT May 18, 2026
12am PDT May 19, 2026-6pm PDT May 25, 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