Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

Lat: 37.61961°NLon: 122.36558°WElev: 10.0ft.

Overcast

61°F

16°C

Humidity 77%
Wind Speed SSE 10 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 31 Mar 09:00 AM PDT
Extended Forecast for

San Mateo CA

  • Today

    Today: Rain likely, mainly between noon and 2pm.  Mostly cloudy, with a high near 69. Light and variable wind becoming southwest 5 to 8 mph in the morning.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Rain Likely

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 11pm.  Mostly cloudy, with a low around 52. Southwest wind around 6 mph becoming calm  in the evening.

    Low: 52 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 11am.  Mostly cloudy, with a high near 67. Light south southwest wind becoming southwest 5 to 9 mph in the afternoon.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain.  Low around 48. West southwest wind 6 to 9 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Rain

  • Thursday

    Thursday: A 20 percent chance of rain before 11am.  Sunny, with a high near 65. Northwest wind 7 to 11 mph.

    High: 65 °F

    Slight Chance
    Rain then
    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Rain likely, mainly between noon and 2pm. Mostly cloudy, with a high near 69. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 52. Southwest wind around 6 mph becoming calm in the evening.
Wednesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 67. Light south southwest wind becoming southwest 5 to 9 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 48. West southwest wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 20 percent chance of rain before 11am. Sunny, with a high near 65. Northwest wind 7 to 11 mph.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.54°N 122.32°W (Elev. 194 ft)
1:26 am PDT Mar 31, 2026
9am PDT Mar 31, 2026-6pm PDT Apr 6, 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