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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

SAN FRANCISCO DOWNTOWN (SFOC1)

Lat: 37.77056°NLon: 122.42694°WElev: 150.0ft.

NA

56°F

13°C

Humidity 100%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 56°F (13°C)
Visibility NA
Last update 20 Sep 12:43 AM PDT
Extended Forecast for

San Francisco CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 58. West southwest wind around 7 mph.

    Low: 58 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 66. West southwest wind 6 to 10 mph.

    High: 66 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 58. West southwest wind 6 to 10 mph.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 67. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 67 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 58. West southwest wind 7 to 13 mph, with gusts as high as 18 mph.

    Low: 58 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 58. West southwest wind around 7 mph.
Sunday
Mostly cloudy, with a high near 66. West southwest wind 6 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 58. West southwest wind 6 to 10 mph.
Monday
Partly sunny, with a high near 67. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 58. West southwest wind 7 to 13 mph, with gusts as high as 18 mph.
Tuesday
Partly sunny, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Francisco CA
 37.77°N 122.41°W (Elev. 131 ft)
Last Update:
1:26 am PDT Sep 20, 2026
Forecast Valid:
1am PDT Sep 20, 2026-6pm PDT Sep 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation