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, San Jose International Airport (KSJC)

Lat: 37.35917°NLon: 121.92417°WElev: 59.0ft.

Clear

39°F

4°C

Humidity 80%
Wind Speed S 3 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 21 Feb 03:15 AM PST
Extended Forecast for

San Jose International Airport CA

Cold Weather Advisory February 21, 03:45am until February 21, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory February 21, 03:45am until February 21, 09:00am

    NOW until 9:00am Sat

    Cold Weather Advisory

  • Overnight

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 60. Southeast wind 9 to 15 mph, with gusts as high as 22 mph.

    High: 60 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. Southeast wind 9 to 13 mph.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 65. South wind 8 to 10 mph.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 3am.  Otherwise, partly cloudy, with a low around 45. Light and variable wind.

    Low: 45 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 68.

    High: 68 °F

    Patchy Fog
    then Partly
    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of rain after 10pm.  Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely.  Cloudy, with a high near 65.

    High: 65 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 40. Southeast wind around 6 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 60. Southeast wind 9 to 15 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 45. Southeast wind 9 to 13 mph.
Sunday
Mostly sunny, with a high near 65. South wind 8 to 10 mph.
Sunday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 45. Light and variable wind.
Monday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 68.
Monday Night
A 40 percent chance of rain after 10pm. Mostly cloudy, with a low around 54.
Tuesday
Rain likely. Cloudy, with a high near 65.
Tuesday Night
Rain likely, mainly before 4am. Cloudy, with a low around 53.
Wednesday
A chance of rain, mainly before 10am. Mostly cloudy, with a high near 66.
Wednesday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 51.
Thursday
A slight chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 71.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
San Jose International Airport CA
 37.35°N 121.93°W (Elev. 66 ft)
12:26 am PST Feb 21, 2026
3am PST Feb 21, 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