Critical Fire Weather in the High Plains; Heat Continues in the West

Critical fire weather conditions will persist in the central High Plains through Friday as gusty winds and dry conditions continue. The heat wave across the West and Southwest will continue to intensify through the week, with daily and monthly record highs expected to be broken. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

133°F

56°C

Humidity 55%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 112°F (44°C)
Visibility 10.00 mi
Heat Index289°F (143°C)
Last update 18 Mar 09:57 PM PDT
Extended Forecast for

4 Miles W Mount Hamilton CA

Heat Advisory March 18, 11:38pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 11:38pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 58. Light and variable wind.

    Low: 58 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 91. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 60. Calm wind.
Thursday
Sunny, with a high near 89. Calm wind becoming west northwest around 6 mph in the afternoon.
Thursday Night
Clear, with a low around 58. Light and variable wind.
Friday
Sunny, with a high near 91. Calm wind becoming northwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 58. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Mount Hamilton CA
 37.34°N 121.73°W (Elev. 2011 ft)
9:21 pm PDT Mar 18, 2026
11pm PDT Mar 18, 2026-6pm PDT Mar 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database