My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Elev 932 ft, 34.090 °N 118.599 °W

      Topanga, CA

      Topanga Station77°
      Updated: 1:29 PM PDT on September 18, 2026 (GMT -7)
      4 minutes ago
      75°
      54°
      77
      Feels Like 77
      Sunny
      N
      9
      Similar temperature is expected today
      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 09/19
        High 75°f
         1% Precip. / 0 in
        Abundant sunshine. High around 75F. Winds SSW at 10 to 15 mph.
        Tonight
        Sat 09/19
        Low 55°f
         7% Precip. / 0 in
        Clear to partly cloudy. Low near 55F. Winds ENE at 5 to 10 mph.
        Tomorrow
        Sun 09/20
        High 77°f58°f
         7% Precip. / 0 in
        Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 77F. Winds S at 5 to 10 mph.
        Hourly Forecast
        Now
        74°
        2PM
        75°
        3PM
        75°
        4PM
        75°
        5PM
        74°
        6PM
        73°
        6:56PM
        Sunset
        7PM
        70°
        8PM
        68°
        9PM
        64°
        10PM
        63°
        11PM
        62°
        12AM
        61°
        1AM
        60°
        2AM
        59°
        3AM
        58°
        4AM
        57°
        5AM
        57°
        6AM
        56°
        6:40AM
        Sunrise
        7AM
        56°
        8AM
        60°
        9AM
        64°
        10AM
        68°
        11AM
        71°
        12PM
        73°
        1PM
        74°
        Precipitation
        8%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        49
        Good
        UV Index
        8
        Very High
        Additional Conditions
        1. Pressure 30.01 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point59°F
        5. Humidity 59%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSMO Station History
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 75°F 92°F 108°F 1984
        4. Low 54°F 55°F 40°F 1954
        5. Rain/Snow Depth
        6. Precipitation 0 in 0 in -
        7. Snow 0 in 0 in -
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 77°F 92°F 106°F
        4. Low 54°F 55°F 39°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:39 AM 6:56 PM
        3. Civil Twilight 6:14 AM 7:21 PM
        4. Nautical Twilight 5:45 AM 7:50PM
        5. Astronomical Twilight 5:15 AM 8:20 PM
        1. Length of Visible Light 13h 6m
        2. Length of Day 12h 16m
        3. Tomorrow will be 2 minutes 7 seconds shorter
        1. Moon 2:11 PM 11:41 PM
        2. First Quarter50% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
        Loading…
        Health
        Loading…
        Weather Alerts
        Loading…
        Our AppsAbout UsContactCareersWeather Data APIs
        PWS NetworkWundermap
        Terms of UsePrivacy PolicyCookie NoticeAccessibility StatementAdChoicesData Vendors
        essentialaccessibility.com
        We recognize our responsibility to use data and technology for good. We may use or share your data with our data vendors. Take control of your data.
        Review All Privacy and Ad Settings
        Choose how my information is shared
        Data Rights
        The Weather Company The Weather Channel Weather Underground Storm Radar
        © The Weather Company, LLC 2026
        Glossary