Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Overcast

52°F

11°C

Humidity 87%
Wind Speed SE 9 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 12 Apr 04:35 AM PDT
Extended Forecast for

San Leandro CA

  • Overnight

    Overnight: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 49. Southwest wind around 10 mph, with gusts as high as 20 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm.  High near 62. West southwest wind 10 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers, mainly before 7pm.  Partly cloudy, with a low around 48. West southwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 48 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 65. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. West wind 5 to 10 mph.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Southwest wind around 10 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 62. West southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 40 percent chance of showers, mainly before 7pm. Partly cloudy, with a low around 48. West southwest wind 5 to 9 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 65. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 48. West wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Sunny, with a high near 69.
Thursday Night
Clear, with a low around 48.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
San Leandro CA
 37.7°N 122.16°W (Elev. 43 ft)
1:25 am PDT Apr 12, 2026
4am PDT Apr 12, 2026-6pm PDT Apr 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database