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

Severe Thunderstorm and Flash Flooding Risks from Southern Plains to Midwest; Heat Wave Developing in the Southeast

Severe thunderstorms and flash flooding will again be possible from the Southern Plains into the Midwest on Friday. Periodic risks of severe thunderstorms, along with flash flooding, are forecast from the Central and Southern Plains to the Great Lakes and Northeast into the Memorial Day weekend. Temperatures across much of the East will run above normal where they will hold into Memorial Day. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

Lat: 37.61961°NLon: 122.36558°WElev: 10ft.

Partly Cloudy

55°F

13°C

Humidity 77%
Wind Speed SSW 5 MPH
Barometer 29.99 in
Dewpoint 48°F (9°C)
Visibility 9.00 mi
Last update 24 May 12:20 am PDT
Extended Forecast for

San Mateo CA

  • Overnight

    Overnight: Mostly clear, with a low around 53. Southwest wind around 11 mph.

    Mostly Clear

    Low: 53 °F

  • Friday

    Friday: Sunny, with a high near 69. West southwest wind 7 to 15 mph, with gusts as high as 20 mph.

    Sunny

    High: 69 °F

  • Friday
    Night

    Friday Night: Increasing clouds, with a low around 51. West southwest wind 9 to 16 mph, with gusts as high as 21 mph.

    Increasing
    Clouds

    Low: 51 °F

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny, with a high near 64. West wind 9 to 13 mph.

    Decreasing
    Clouds

    High: 64 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 50. West northwest wind 16 to 20 mph, with gusts as high as 25 mph.

    Mostly Cloudy

    Low: 50 °F

  • Sunday

    Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 62.

    Slight Chance
    Showers

    High: 62 °F

  • Sunday
    Night

    Sunday Night: Mostly cloudy, with a low around 50.

    Mostly Cloudy

    Low: 50 °F

  • Memorial
    Day

    Memorial Day: Partly sunny, with a high near 64.

    Partly Sunny

    High: 64 °F

  • Monday
    Night

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

    Partly Cloudy

    Low: 51 °F

Detailed Forecast

Overnight
Mostly clear, with a low around 53. Southwest wind around 11 mph.
Friday
Sunny, with a high near 69. West southwest wind 7 to 15 mph, with gusts as high as 20 mph.
Friday Night
Increasing clouds, with a low around 51. West southwest wind 9 to 16 mph, with gusts as high as 21 mph.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 64. West wind 9 to 13 mph.
Saturday Night
Mostly cloudy, with a low around 50. West northwest wind 16 to 20 mph, with gusts as high as 25 mph.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 50.
Memorial Day
Partly sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 71.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
San Mateo CA
 37.54°N 122.32°W (Elev. 194 ft)
Last Update:
8:10 pm PDT May 23, 2019
Forecast Valid:
12am PDT May 24, 2019-6pm PDT May 29, 2019
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation