Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

54°F

12°C

Humidity 81%
Wind Speed NNE 4 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 19 Apr 03:35 AM PDT
Extended Forecast for

2 Miles SW Castro Valley CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 72. Light west northwest wind becoming west 5 to 10 mph in the afternoon.

    High: 72 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. West wind 5 to 8 mph becoming southeast after midnight.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: Rain, mainly after 5pm.  High near 72. South southeast wind 6 to 11 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance Rain
    then Rain

  • Monday Night

    Monday Night: Rain.  Low around 54. South wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 54 °F

    Rain

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am.  High near 64. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 64 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm.  Mostly cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of rain, mainly before 11am.  Mostly sunny, with a high near 66.

    High: 66 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 52. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 72. Light west northwest wind becoming west 5 to 10 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 51. West wind 5 to 8 mph becoming southeast after midnight.
Monday
Rain, mainly after 5pm. High near 72. South southeast wind 6 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain. Low around 54. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am. High near 64. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Wednesday
A chance of rain, mainly before 11am. Mostly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 49.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Castro Valley CA
 37.69°N 122.1°W (Elev. 174 ft)
1:26 am PDT Apr 19, 2026
3am PDT Apr 19, 2026-6pm PDT Apr 25, 2026
 
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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