My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Elev 39 ft, 37.565 °N 122.330 °W

      San Mateo, CA

      Central San Mateo Station50°
      Updated: 5:04 AM PDT on September 26, 2026 (GMT -7)
      7 minutes ago
      67°
      53°
      50
      Feels Like 50
      Fair
      N
      1
      Lower 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
        Sun 09/27
        High 67°f
         10% Precip. / 0 in
        A mix of clouds and sun. High 67F. Winds W at 10 to 15 mph.
        Tonight
        Sun 09/27
        Low 55°f
         15% Precip. / 0 in
        Cloudy. Low around 55F. Winds W at 5 to 10 mph.
        Tomorrow
        Mon 09/28
        High 65°f54°f
         19% Precip. / 0 in
        Cloudy skies early will become partly cloudy later in the day. High around 65F. Winds W at 10 to 20 mph.
        Hourly Forecast
        Now
        55°
        6AM
        55°
        7AM
        55°
        7:00AM
        Sunrise
        8AM
        56°
        9AM
        60°
        10AM
        62°
        11AM
        64°
        12PM
        65°
        1PM
        64°
        2PM
        65°
        3PM
        65°
        4PM
        65°
        5PM
        64°
        6PM
        62°
        6:59PM
        Sunset
        7PM
        60°
        8PM
        58°
        9PM
        57°
        10PM
        57°
        11PM
        57°
        12AM
        56°
        1AM
        56°
        2AM
        56°
        3AM
        56°
        4AM
        56°
        5AM
        56°
        Precipitation
        20%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        37
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.95 in
        2. Visibility 9 miles
        3. Clouds Partly Cloudy
        4. Dew Point52°F
        5. Humidity 91%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSFO Station History
        Almanac for September 26, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 78°F 99°F 1963
        4. Low 53°F 53°F 38°F 1980
        5. Rain/Snow Depth
        6. Precipitation 0 in 3 in -
        7. Snow 0 in 0 in -
        Almanac for September 27, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 65°F 78°F 97°F
        4. Low 53°F 53°F 43°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:00 AM 6:59 PM
        3. Civil Twilight 6:34 AM 7:25 PM
        4. Nautical Twilight 6:04 AM 7:56PM
        5. Astronomical Twilight 5:33 AM 8:26 PM
        1. Length of Visible Light 12h 51m
        2. Length of Day 11h 59m
        3. Tomorrow will be 2 minutes 24 seconds shorter
        1. Moon 6:53 PM 7:00 AM
        2. Full99% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Nearby Weather Stations
        Station Location
        Temp
        Windchill
        Heat Index
        Dew Point
        Humidity
        Wind
        Precip.
        Elev.
        Updated
        Loading nearby stations…
        Precipitation
        Loading…
        Health
        Loading…
        Weather Alerts
        Loading…
        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