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

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

57°F

14°C

Humidity 93%
Wind Speed SSE 5 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 11 Apr 01:00 AM PDT
Extended Forecast for

San Lorenzo CA

  • Overnight

    Overnight: A 20 percent chance of rain before 3am. Mostly cloudy, with a low around 54. South southwest wind around 8 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Rain and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 63. South wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Chance Rain
    then Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and 3am, then showers likely and possibly a thunderstorm after 3am. Low around 50. South southwest wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 50 °F

    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 60. Southwest wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of rain before 11pm. Partly cloudy, with a low around 48. West southwest wind 9 to 14 mph becoming light southwest after midnight. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Monday Night

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

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Tuesday Night

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

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of rain before 3am. Mostly cloudy, with a low around 54. South southwest wind around 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 63. South wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and 3am, then showers likely and possibly a thunderstorm after 3am. Low around 50. South southwest wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers and possibly a thunderstorm. High near 60. Southwest wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of rain before 11pm. Partly cloudy, with a low around 48. West southwest wind 9 to 14 mph becoming light southwest after midnight. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Lorenzo CA
 37.66°N 122.12°W (Elev. 66 ft)
Last Update:
11:27 pm PDT Apr 10, 2026
Forecast Valid:
1am PDT Apr 11, 2026-6pm PDT Apr 17, 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