Heat Wave Continues in the West; Critical Fire Weather Conditions in the High 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. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

73°F

23°C

Humidity 56%
Wind Speed NA 3 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Mar 09:47 PM PDT
Extended Forecast for

Mount Hamilton CA

Heat Advisory March 18, 12:03am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 12:03am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Overnight

    Low: 64 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87. Light and variable wind becoming east around 5 mph in the afternoon.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62. North wind 3 to 5 mph.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 88. Northwest wind 3 to 5 mph.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 62. North northwest wind around 6 mph becoming light and variable  after midnight.

    Low: 62 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Overnight
Clear, with a low around 64. Light and variable wind.
Wednesday
Sunny, with a high near 87. Light and variable wind becoming east around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 62. North wind 3 to 5 mph.
Thursday
Sunny, with a high near 88. Northwest wind 3 to 5 mph.
Thursday Night
Clear, with a low around 62. North northwest wind around 6 mph becoming light and variable after midnight.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 68.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Hamilton CA
 37.35°N 121.64°W (Elev. 2398 ft)
1:49 pm PDT Mar 17, 2026
12am PDT Mar 18, 2026-6pm PDT Mar 24, 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