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 >

Hazardous Weather Conditions

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

91°F

33°C

Humidity 26%
Wind Speed NW 3 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 20 Mar 02:47 PM PDT
Extended Forecast for

7 Miles NNW Mount Hamilton CA

Heat Advisory March 20, 03:16pm until March 20, 08:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory March 20, 03:16pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 75. West northwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51. West wind 9 to 13 mph.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 71. Northwest wind around 9 mph.

    High: 71 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50. Northwest wind 7 to 9 mph becoming west southwest after midnight.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 60. West northwest wind around 6 mph becoming south southwest after midnight.
Saturday
Mostly sunny, with a high near 75. West northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 51. West wind 9 to 13 mph.
Sunday
Sunny, with a high near 71. Northwest wind around 9 mph.
Sunday Night
Mostly clear, with a low around 50. Northwest wind 7 to 9 mph becoming west southwest after midnight.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 71.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNW Mount Hamilton CA
 37.43°N 121.69°W (Elev. 3619 ft)
2:07 pm PDT Mar 20, 2026
3pm PDT Mar 20, 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