Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Mostly Cloudy

58°F

14°C

Humidity 64%
Wind Speed SSW 14 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 46°F (8°C)
Visibility 9.00 mi
Last update 12 Apr 11:54 AM PDT
Extended Forecast for

2 Miles WSW Union City CA

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms, mainly between 4pm and 5pm.  High near 59. West southwest wind around 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Showers

  • Tonight

    Tonight: A 50 percent chance of showers between 2am and 4am.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 47. West southwest wind 5 to 9 mph becoming calm  in the evening.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: Patchy fog before 9am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 63. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. West northwest wind 5 to 10 mph becoming light west southwest  after midnight.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 64. Light west southwest wind becoming west 5 to 10 mph in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Wednesday Night

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

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms, mainly between 4pm and 5pm. High near 59. West southwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 50 percent chance of showers between 2am and 4am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 47. West southwest wind 5 to 9 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Monday
Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 63. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 48. West northwest wind 5 to 10 mph becoming light west southwest after midnight.
Tuesday
Mostly sunny, with a high near 64. Light west southwest wind becoming west 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Partly sunny, with a high near 65.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Sunny, with a high near 67.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Union City CA
 37.58°N 122.04°W (Elev. 121 ft)
11:27 am PDT Apr 12, 2026
12pm PDT Apr 12, 2026-6pm PDT Apr 18, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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