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

Severe Thunderstorm and Excessive Rainfall Potential for the Central U.S. Today

Severe thunderstorms with a threat for large hail, isolated damaging winds and possibly a tornado are expected in parts of eastern Colorado today from mid afternoon to early evening. Several days of heavy rainfall will begin today over the western Gulf Coast where Flood Watches and excessive rainfall outlooks have been issued for today, Saturday, and Sunday. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Partly Cloudy

70°F

21°C

Humidity 52%
Wind Speed NW 12 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 21 May 01:35 PM PDT
Extended Forecast for

San Bruno CA

  • This Afternoon

    This Afternoon: Sunny, with a steady temperature around 68. West wind 7 to 11 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 50. West wind 5 to 9 mph.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 70. Light west southwest wind increasing to 8 to 13 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 70 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. Southwest wind 8 to 11 mph.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 68. South southwest wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 68. West wind 7 to 11 mph.
Tonight
Partly cloudy, with a low around 50. West wind 5 to 9 mph.
Friday
Sunny, with a high near 70. Light west southwest wind increasing to 8 to 13 mph in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Mostly clear, with a low around 52. Southwest wind 8 to 11 mph.
Saturday
Mostly sunny, with a high near 68. South southwest wind 7 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 52.
Memorial Day
Partly sunny, with a high near 62.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Bruno CA
 37.62°N 122.4°W (Elev. 95 ft)
Last Update:
1:26 pm PDT May 21, 2026
Forecast Valid:
1pm PDT May 21, 2026-6pm PDT May 27, 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