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

Hazardous Weather Conditions

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Mostly Cloudy

78°F

26°C

Humidity 46%
Wind Speed WNW 13 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 04 Oct 02:56 PM PDT
Extended Forecast for

Hillsborough CA

Heat Advisory October 4, 03:27pm until October 7, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 4, 03:27pm until October 7, 10:00pm

    NOW until 10:00pm Wed

    Heat Advisory

  • Tonight

    Low: 62 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 90. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 62. West wind around 6 mph becoming calm in the evening.

    Low: 62 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Calm wind.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 62. West northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 62 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 62. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 90. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Clear, with a low around 62. West wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 90. Calm wind.
Tuesday Night
Clear, with a low around 62. West northwest wind 5 to 8 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsborough CA
 37.55°N 122.35°W (Elev. 197 ft)
Last Update:
1:26 pm PDT Oct 4, 2026
Forecast Valid:
3pm PDT Oct 4, 2026-6pm PDT Oct 11, 2026
 
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