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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Mostly Cloudy

61°F

16°C

Humidity 87%
Wind Speed W 14 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Aug 02:50 AM PDT
Extended Forecast for

2 Miles SW Colma CA

  • Overnight

    Overnight: Patchy drizzle. Mostly cloudy, with a low around 56. West wind around 11 mph.

    Low: 56 °F

    Patchy
    Drizzle

  • Sunday

    Sunday: Patchy drizzle before 11am. Partly sunny, with a high near 63. West wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 63 °F

    Patchy
    Drizzle then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55. West wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 63. West wind 7 to 11 mph.

    High: 63 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56. West wind 9 to 13 mph, with gusts as high as 18 mph.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of drizzle before 11am. Partly sunny, with a high near 63.

    High: 63 °F

    Slight Chance
    Drizzle then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy drizzle. Mostly cloudy, with a low around 56. West wind around 11 mph.
Sunday
Patchy drizzle before 11am. Partly sunny, with a high near 63. West wind 10 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 55. West wind 11 to 14 mph, with gusts as high as 23 mph.
Monday
Partly sunny, with a high near 63. West wind 7 to 11 mph.
Monday Night
Mostly cloudy, with a low around 56. West wind 9 to 13 mph, with gusts as high as 18 mph.
Tuesday
A slight chance of drizzle before 11am. Partly sunny, with a high near 63.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 55.
Friday
Partly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 55.
Saturday
Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Colma CA
 37.65°N 122.49°W (Elev. 0 ft)
Last Update:
2:33 am PDT Aug 17, 2025
Forecast Valid:
3am PDT Aug 17, 2025-6pm PDT Aug 23, 2025
 
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