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

52°F

11°C

Humidity 50%
Wind Speed N 0 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 20 Feb 06:15 PM PST
Extended Forecast for

4 Miles S Mount Hamilton CA

Extreme Cold Warning February 21, 01:00am until February 21, 09:00am
Click here for hazard details and duration
Extreme Cold Warning
  • Tonight

    Tonight: Widespread frost between 7pm and 3am.  Otherwise, increasing clouds, with a low around 31. Calm wind becoming southeast 5 to 7 mph in the evening.

    Low: 31 °F

    Frost

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 50. South wind 8 to 10 mph, with gusts as high as 22 mph.

    High: 50 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. South southeast wind around 11 mph, with gusts as high as 18 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 58. South wind 8 to 10 mph.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. Light and variable wind.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: A 10 percent chance of rain after 4pm.  Partly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: A 40 percent chance of rain, mainly after 10pm.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely.  Cloudy, with a high near 56.

    High: 56 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely.  Cloudy, with a low around 49.

    Low: 49 °F

    Rain Likely

Detailed Forecast

Tonight
Widespread frost between 7pm and 3am. Otherwise, increasing clouds, with a low around 31. Calm wind becoming southeast 5 to 7 mph in the evening.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 50. South wind 8 to 10 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 36. South southeast wind around 11 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 58. South wind 8 to 10 mph.
Sunday Night
Partly cloudy, with a low around 42. Light and variable wind.
Monday
A 10 percent chance of rain after 4pm. Partly sunny, with a high near 62.
Monday Night
A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 48.
Tuesday
Rain likely. Cloudy, with a high near 56.
Tuesday Night
Rain likely. Cloudy, with a low around 49.
Wednesday
A chance of rain. Mostly cloudy, with a high near 61.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Thursday
A chance of rain. Mostly sunny, with a high near 64.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 47.
Friday
A slight chance of rain. Mostly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Mount Hamilton CA
 37.28°N 121.63°W (Elev. 2831 ft)
2:25 pm PST Feb 20, 2026
6pm PST Feb 20, 2026-6pm PST Feb 27, 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