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

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.

Overcast

54°F

12°C

Humidity 87%
Wind Speed SE 6 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 13 Apr 12:20 AM PDT
Extended Forecast for

2 Miles SSE Union City CA

  • Overnight

    Overnight: A slight chance of rain between 2am and 4am. Mostly cloudy, with a low around 48. Calm wind. Chance of precipitation is 20%.

    Low: 48 °F

    Slight Chance
    Rain

  • Monday

    Monday: Mostly sunny, with a high near 63. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 48. West northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 48 °F

    Increasing
    Clouds

  • 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: Mostly clear, with a low around 47. West wind 6 to 11 mph becoming light west southwest after midnight.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

Detailed Forecast

Overnight
A slight chance of rain between 2am and 4am. Mostly cloudy, with a low around 48. Calm wind. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 63. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 48. West northwest wind 5 to 9 mph becoming calm 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
Mostly clear, with a low around 47. West wind 6 to 11 mph becoming light west southwest after midnight.
Wednesday
Partly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Sunny, with a high near 67.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
A slight chance of rain. Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Union City CA
 37.59°N 122.02°W (Elev. 164 ft)
Last Update:
11:27 pm PDT Apr 12, 2026
Forecast Valid:
12am PDT Apr 13, 2026-6pm PDT Apr 19, 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