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

Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Partly Cloudy

55°F

13°C

Humidity 71%
Wind Speed WSW 5 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Apr 10:54 PM PDT
Extended Forecast for

San Lorenzo CA

  • Tonight

    Tonight: A chance of rain, mainly between 3am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 50. West southwest wind 6 to 8 mph becoming south southeast after midnight. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Rain and thunderstorms likely before 3pm, then a slight chance of rain between 3pm and 4pm. Partly sunny, with a high near 64. Southeast wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Showers
    Likely then
    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. West northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 67. Calm wind becoming west northwest 5 to 9 mph in the afternoon.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. West southwest wind 5 to 13 mph.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of rain, mainly between 3am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 50. West southwest wind 6 to 8 mph becoming south southeast after midnight. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Rain and thunderstorms likely before 3pm, then a slight chance of rain between 3pm and 4pm. Partly sunny, with a high near 64. Southeast wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 49. West northwest wind 5 to 7 mph becoming calm after midnight.
Thursday
Sunny, with a high near 67. Calm wind becoming west northwest 5 to 9 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 50. West southwest wind 5 to 13 mph.
Friday
Mostly cloudy, with a high near 65.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Partly sunny, with a high near 67.
Monday Night
Mostly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 68.
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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:
8:32 pm PDT Apr 21, 2026
Forecast Valid:
11pm PDT Apr 21, 2026-6pm PDT Apr 28, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation