Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Overcast

61°F

16°C

Humidity 82%
Wind Speed SSE 6 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 01 Jan 01:20 PM PST
Extended Forecast for

3 Miles SE Union City CA

Coastal Flood Advisory January 1, 01:32pm until January 4, 02:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory January 1, 01:32pm until January 4, 02:00pm

    NOW until 2:00pm Sun

    Coastal Flood Advisory

  • New Year's Day

    High: 61 °F

    Chance Rain

  • Tonight

    Tonight: A 20 percent chance of rain before 10pm.  Mostly cloudy, with a low around 50. South southeast wind 6 to 10 mph, with gusts as high as 23 mph.

    Low: 50 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Rain likely after 4pm.  Mostly sunny during the morning, then cloudy during the afternoon, with a high near 61. South southeast wind 8 to 11 mph, with gusts as high as 24 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Partly Sunny
    then Rain
    Likely

  • Friday Night

    Friday Night: Rain.  Low around 55. South southeast wind 15 to 20 mph, with gusts as high as 37 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Rain

  • Saturday

    Saturday: Rain.  High near 60. South wind 10 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Rain

  • Saturday Night

    Saturday Night: Rain.  Low around 53. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Rain

  • Sunday

    Sunday: Rain.  High near 57. Chance of precipitation is 100%.

    High: 57 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Rain Likely

Detailed Forecast

New Year's Day
A 30 percent chance of rain, mainly before 3pm. Mostly cloudy, with a high near 61. South wind 11 to 14 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 50. South southeast wind 6 to 10 mph, with gusts as high as 23 mph.
Friday
Rain likely after 4pm. Mostly sunny during the morning, then cloudy during the afternoon, with a high near 61. South southeast wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain. Low around 55. South southeast wind 15 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain. High near 60. South wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain. Low around 53. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. High near 57. Chance of precipitation is 100%.
Sunday Night
Rain likely. Mostly cloudy, with a low around 48.
Monday
Rain likely. Mostly cloudy, with a high near 56.
Monday Night
A chance of rain, mainly before 4am. Mostly cloudy, with a low around 43.
Tuesday
A slight chance of rain. Partly sunny, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 43.
Wednesday
A slight chance of rain. Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Union City CA
 37.57°N 121.98°W (Elev. 43 ft)
12:32 pm PST Jan 1, 2026
1pm PST Jan 1, 2026-6pm PST Jan 7, 2026
 
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Additional Resources

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