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      Heat Advisory
      until 10:00 PM PDT
      +1 more alert
      Elev 35 ft, 37.670 °N 122.454 °W

      South San Francisco, CA

      Winston-Serra Station72°
      Updated: 1:53 PM PDT on October 2, 2026 (GMT -7)
      6 minutes ago
      74°
      54°
      72
      Feels Like 72
      Mostly Cloudy
      N
      7
      Higher temperature is expected today
      Wundermap
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Sat 10/03
        High 74°f
         2% Precip. / 0 in
        Sun and clouds mixed. High 74F. Winds WNW at 5 to 10 mph.
        Tonight
        Sat 10/03
        Low 54°f
         7% Precip. / 0 in
        A few clouds. Low 54F. Winds NW at 5 to 10 mph.
        Tomorrow
        Sun 10/04
        High 82°f59°f
         5% Precip. / 0 in
        Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 82F. NE winds shifting to NW at 10 to 15 mph.
        Hourly Forecast
        Now
        74°
        2PM
        73°
        3PM
        73°
        4PM
        72°
        5PM
        67°
        6PM
        65°
        6:51PM
        Sunset
        7PM
        62°
        8PM
        61°
        9PM
        60°
        10PM
        60°
        11PM
        59°
        12AM
        58°
        1AM
        58°
        2AM
        57°
        3AM
        56°
        4AM
        56°
        5AM
        55°
        6AM
        56°
        7AM
        56°
        7:07AM
        Sunrise
        8AM
        59°
        9AM
        63°
        10AM
        68°
        11AM
        74°
        12PM
        76°
        1PM
        79°
        Precipitation
        7%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        63
        Moderate
        UV Index
        4
        Moderate
        Additional Conditions
        1. Pressure 29.91 in
        2. Visibility 7 miles
        3. Clouds Mostly Cloudy
        4. Dew Point59°F
        5. Humidity 60%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSFO Station History
        Almanac for October 2, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 74°F 96°F 1980
        4. Low 54°F 55°F 41°F 1950
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for October 3, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 82°F 74°F 95°F
        4. Low 54°F 55°F 42°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:06 AM 6:51 PM
        3. Civil Twilight 6:40 AM 7:17 PM
        4. Nautical Twilight 6:09 AM 7:47PM
        5. Astronomical Twilight 5:39 AM 8:18 PM
        1. Length of Visible Light 12h 36m
        2. Length of Day 11h 44m
        3. Tomorrow will be 2 minutes 23 seconds shorter
        1. Moon 11:16 PM 2:01 PM
        2. Waning Gibbous53% of the Moon is Illuminated
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
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