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.

Mostly Cloudy

55°F

13°C

Humidity 71%
Wind Speed SSE 12 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 12 Apr 09:00 AM PDT
Extended Forecast for

San Lorenzo CA

  • Today

    Today: Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms, mainly between 4pm and 5pm.  High near 59. South southwest wind 13 to 16 mph, with gusts as high as 23 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 59 °F

    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 8pm.  Partly cloudy, with a low around 48. West wind 6 to 11 mph becoming light and variable  after midnight.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 63. Light and variable wind becoming west 8 to 13 mph in the afternoon.

    High: 63 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49. West southwest wind 6 to 13 mph.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. West wind 6 to 11 mph.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Wednesday Night

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

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms, mainly between 4pm and 5pm. High near 59. South southwest wind 13 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 30 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 48. West wind 6 to 11 mph becoming light and variable after midnight. New precipitation amounts of less than a tenth of an inch possible.
Monday
Partly sunny, then gradually becoming sunny, with a high near 63. Light and variable wind becoming west 8 to 13 mph in the afternoon.
Monday Night
Mostly clear, with a low around 49. West southwest wind 6 to 13 mph.
Tuesday
Mostly sunny, with a high near 63. West wind 6 to 11 mph.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Sunny, with a high near 66.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
San Lorenzo CA
 37.66°N 122.12°W (Elev. 66 ft)
8:36 am PDT Apr 12, 2026
9am PDT Apr 12, 2026-6pm PDT Apr 18, 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