National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

light rain,mist

55°F

13°C

Humidity 87%
Wind Speed SSE 19 MPH
Barometer 29.63 in (1003.39 mb)
Dewpoint 52°F (11°C)
Visibility 5.00 mi
Last update 24 Dec 11:20 PM PST
Extended Forecast for

Hayward CA

Flood Watch December 24, 11:41pm until December 26, 10:00pm
Wind Advisory until December 25, 10:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 24, 11:41pm until December 26, 10:00pm
    Wind Advisory until December 25, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 53 °F

    Severe
    Thunderstorms
    and Breezy

  • Christmas Day

    Christmas Day: Rain and possibly a thunderstorm before 7am, then rain between 7am and 10am, then showers and possibly a thunderstorm after 10am. Some of the storms could be severe. High near 58. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 58 °F

    Severe
    Thunderstorms
    and Breezy

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 10pm, then rain likely after 10pm. Some of the storms could be severe. Low around 49. Breezy, with a south southeast wind 14 to 22 mph becoming southwest after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Severe
    Thunderstorms
    and Breezy
    then Rain
    Likely

  • Friday

    Friday: Rain. High near 56. South wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 46. South southwest wind 6 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain. Partly sunny, with a high near 53.

    High: 53 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 53. Breezy, with a south southwest wind around 23 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Christmas Day
Rain and possibly a thunderstorm before 7am, then rain between 7am and 10am, then showers and possibly a thunderstorm after 10am. Some of the storms could be severe. High near 58. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm before 10pm, then rain likely after 10pm. Some of the storms could be severe. Low around 49. Breezy, with a south southeast wind 14 to 22 mph becoming southwest after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 56. South wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 46. South southwest wind 6 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of rain. Partly sunny, with a high near 53.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 53.
Sunday Night
Patchy frost after 3am. Otherwise, mostly clear, with a low around 37.
Monday
Areas of frost before 7am. Otherwise, sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Hayward CA
 37.64°N 122.12°W (Elev. 36 ft)
Last Update:
11:27 pm PST Dec 24, 2025
Forecast Valid:
11pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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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