Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

70°F

21°C

Humidity 43%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 16 Mar 09:58 PM PDT
Extended Forecast for

10 Miles NNE Mount Hamilton CA

Heat Advisory March 17, 06:44am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 17, 06:44am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 52. Northeast wind around 6 mph becoming west southwest after midnight.

    Low: 52 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. East wind around 6 mph becoming north in the afternoon.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 53. North northwest wind around 6 mph becoming west southwest in the evening.

    Low: 53 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86. North wind 5 to 8 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 84. East wind around 6 mph.
Tonight
Clear, with a low around 52. Northeast wind around 6 mph becoming west southwest after midnight.
Wednesday
Sunny, with a high near 86. East wind around 6 mph becoming north in the afternoon.
Wednesday Night
Clear, with a low around 53. North northwest wind around 6 mph becoming west southwest in the evening.
Thursday
Sunny, with a high near 86. North wind 5 to 8 mph.
Thursday Night
Clear, with a low around 54.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNE Mount Hamilton CA
 37.48°N 121.56°W (Elev. 3707 ft)
1:54 am PDT Mar 17, 2026
6am PDT Mar 17, 2026-6pm PDT Mar 23, 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