Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

59°F

15°C

Humidity 77%
Wind Speed N 0 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 21 Mar 07:47 AM PDT
Extended Forecast for

11 Miles ENE Mount Hamilton CA

  • Today

    Today: Mostly sunny, with a high near 78. West wind 6 to 10 mph becoming north northeast in the morning. Winds could gust as high as 18 mph.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. West northwest wind around 11 mph, with gusts as high as 18 mph.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76. North northwest wind 8 to 10 mph.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49. West wind around 9 mph.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74. West northwest wind 6 to 9 mph.

    High: 74 °F

    Sunny

  • Monday Night

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

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 78. West wind 6 to 10 mph becoming north northeast in the morning. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 50. West northwest wind around 11 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 76. North northwest wind 8 to 10 mph.
Sunday Night
Mostly clear, with a low around 49. West wind around 9 mph.
Monday
Sunny, with a high near 74. West northwest wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles ENE Mount Hamilton CA
 37.42°N 121.46°W (Elev. 2864 ft)
2:22 am PDT Mar 21, 2026
8am PDT Mar 21, 2026-6pm PDT Mar 27, 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