My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      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 Station71°
      Customize
      Fri 10/02
      71°
      53°
      Cloudy
      0
      Sat 10/03
      80°
      58°
      Mostly Sunny
      0
      Sun 10/04
      75°
      56°
      Partly Cloudy
      0
      Mon 10/05
      72°
      56°
      Sunny
      0
      Tue 10/06
      71°
      55°
      Sunny
      0
      Wed 10/07
      70°
      54°
      Mostly Sunny
      0
      Thu 10/08
      70°
      55°
      Partly Cloudy
      0
      Fri 10/09
      66°
      55°
      Partly Cloudy
      0
      Sat 10/10
      66°
      54°
      Partly Cloudy
      0
      Sun 10/11
      67°
      54°
      Partly Cloudy
      0
              Additional Conditions
              1. Pressure 29.92 in
              2. Visibility 6 miles
              3. Clouds Partly Cloudy
              4. Dew Point59°F
              5. Humidity 72%
              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 71°F 74°F 96°F 1980
              4. Low 53°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 80°F 74°F 95°F
              4. Low 53°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
              Nearby Weather Stations
              Station Location
              Temp
              Windchill
              Heat Index
              Dew Point
              Humidity
              Wind
              Precip.
              Elev.
              Updated
              Loading nearby stations…
              Our AppsAbout UsContactCareers
              PWS NetworkWunderMap
              Trust CenterTerms of UsePrivacy PolicyData RightsPrivacy SettingsCookie NoticeData VendorsAccessibility Statement
              Level Access
              The Weather Company The Weather Channel Weather Underground Storm Radar
              © The Weather Company, LLC 2026
              Glossary