Heavy Rainfall and Flooding Concerns in the Southwest; Coastal Low to Impact the East Coast

Deep tropical moisture will lead to widespread showers and thunderstorms capable of producing flash flooding through early next week over the Southwest and Four Corners. A coastal storm is expected to impact the southeast U.S. coast and mid-Atlantic regions with flooding, dangerous rip currents, gusty winds and heavy rain up much of the East Coast through early next week. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

68°F

20°C

Humidity 52%
Wind Speed WNW 9 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 11 Oct 12:20 PM PDT
Extended Forecast for

3 Miles WSW Union City CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 66. West northwest wind 11 to 15 mph, with gusts as high as 20 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. West northwest wind 6 to 11 mph becoming light north northwest  after midnight.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 68. Light and variable wind becoming west northwest 9 to 14 mph in the afternoon.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 55. West wind 8 to 13 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Rain, with thunderstorms also possible after 5pm.  High near 62. West wind 5 to 10 mph becoming south in the morning.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 62 °F

    Rain

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm.  Low around 54. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 54 °F

    Showers

  • Tuesday

    Tuesday: Rain.  High near 60. Chance of precipitation is 90%.

    High: 60 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Rain Likely

  • Wednesday

    Wednesday: A chance of rain, mainly before 11am.  Mostly sunny, with a high near 62.

    High: 62 °F

    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 66. West northwest wind 11 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 52. West northwest wind 6 to 11 mph becoming light north northwest after midnight.
Sunday
Sunny, with a high near 68. Light and variable wind becoming west northwest 9 to 14 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 55. West wind 8 to 13 mph.
Columbus Day
Rain, with thunderstorms also possible after 5pm. High near 62. West wind 5 to 10 mph becoming south in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 54. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday
Rain. High near 60. Chance of precipitation is 90%.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 53.
Wednesday
A chance of rain, mainly before 11am. Mostly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Union City CA
 37.58°N 122.07°W (Elev. 135 ft)
7:08 am PDT Oct 11, 2025
12pm PDT Oct 11, 2025-6pm PDT Oct 17, 2025
 
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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