Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

72°F

22°C

Humidity 56%
Wind Speed N 0 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 19 Mar 09:57 PM PDT
Extended Forecast for

11 Miles NE Mount Hamilton CA

Heat Advisory March 20, 12:11am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 20, 12:11am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Overnight

    Low: 52 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 87. North wind around 6 mph becoming south southeast in the morning.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 52. Northwest wind around 7 mph becoming west southwest in the evening.

    Low: 52 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 80. West northwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. West wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 52. North wind around 7 mph.
Friday
Sunny, with a high near 87. North wind around 6 mph becoming south southeast in the morning.
Friday Night
Increasing clouds, with a low around 52. Northwest wind around 7 mph becoming west southwest in the evening.
Saturday
Mostly sunny, with a high near 80. West northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 46. West wind 11 to 13 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NE Mount Hamilton CA
 37.46°N 121.5°W (Elev. 3310 ft)
12:07 am PDT Mar 20, 2026
12am PDT Mar 20, 2026-6pm PDT Mar 26, 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