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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 critical fire weather to the southern High Plains Friday. A winter storm will track across the Great Lakes and Northeast U.S. Friday into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Hazardous Weather Conditions

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

Lat: 37.66083°NLon: 122.11833°WElev: 46.0ft.

Clear

39°F

4°C

Humidity 86%
Wind Speed ENE 5 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 20 Feb 02:00 AM PST
Extended Forecast for

3 Miles SE Union City CA

Cold Weather Advisory until February 20, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until February 20, 09:00am

    NOW until 9:00am Fri

    Cold Weather Advisory

  • Overnight

    Low: 36 °F

    Patchy Frost

  • Friday

    Friday: Areas of frost before 7am. Otherwise, partly sunny, with a high near 53. Calm wind.

    High: 53 °F

    Areas Frost
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. Light east wind.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 59. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 59 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A 10 percent chance of rain after 4am. Partly cloudy, with a low around 48. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Mostly Clear
    then Slight
    Chance Rain

  • Sunday

    Sunday: A 20 percent chance of rain before 10am. Partly sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of rain, mainly after 4pm. Mostly cloudy, with a high near 68.

    High: 68 °F

    Chance Rain

Detailed Forecast

Overnight
Patchy frost after 4am. Otherwise, partly cloudy, with a low around 36. Calm wind.
Friday
Areas of frost before 7am. Otherwise, partly sunny, with a high near 53. Calm wind.
Friday Night
Partly cloudy, with a low around 38. Light east wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 59. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A 10 percent chance of rain after 4am. Partly cloudy, with a low around 48. South southeast wind around 10 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of rain before 10am. Partly sunny, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
A chance of rain, mainly after 4pm. Mostly cloudy, with a high near 68.
Monday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 55.
Tuesday
Rain. Cloudy, with a high near 62.
Tuesday Night
Rain likely. Cloudy, with a low around 52.
Wednesday
A chance of rain. Mostly cloudy, with a high near 65.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 52.
Thursday
A chance of rain. Mostly cloudy, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Union City CA
 37.57°N 121.98°W (Elev. 43 ft)
Last Update:
12:32 am PST Feb 20, 2026
Forecast Valid:
2am PST Feb 20, 2026-6pm PST Feb 26, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation