Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Partly Cloudy

46°F

8°C

Humidity 65%
Wind Speed NA 4 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 20 Feb 07:47 PM PST
Extended Forecast for

5 Miles SSW Mount Hamilton CA

Extreme Cold Warning February 21, 03:25am until February 21, 09:00am
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning February 21, 03:25am until February 21, 09:00am

    NOW until 9:00am Sat

    Extreme Cold Warning

  • Overnight

    Low: 37 °F

    Areas Frost

  • Saturday

    Saturday: Areas of frost before 7am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Southeast wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 58 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Southeast wind around 7 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 64. South wind around 6 mph.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain after 10pm.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely.  Cloudy, with a high near 64.

    High: 64 °F

    Rain Likely

Detailed Forecast

Overnight
Areas of frost. Otherwise, mostly cloudy, with a steady temperature around 37. Light east southeast wind.
Saturday
Areas of frost before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Southeast wind 6 to 9 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 39. Southeast wind around 7 mph.
Sunday
Mostly sunny, with a high near 64. South wind around 6 mph.
Sunday Night
Partly cloudy, with a low around 43. Calm wind.
Monday
Mostly sunny, with a high near 68.
Monday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 50.
Tuesday
Rain likely. Cloudy, with a high near 64.
Tuesday Night
Rain likely, mainly before 4am. Cloudy, with a low around 50.
Wednesday
A chance of rain, mainly before 10am. Mostly cloudy, with a high near 66.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 48.
Thursday
A slight chance of rain. Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Mount Hamilton CA
 37.28°N 121.68°W (Elev. 1138 ft)
12:26 am PST Feb 21, 2026
3am PST Feb 21, 2026-6pm PST Feb 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