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      Elev 430 ft, 33.619 °N 117.688 °W

      Mission Viejo, CA

      Updated: 11:31 AM PDT on September 16, 2026 (GMT -7)
      7 minutes ago
      77°
      64°
      79
      Feels Like 79
      Mostly Cloudy
      N
      8
      Lower 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
        Thu 09/17
        High 77°f
        2% Precip. / 0 in
        A mix of clouds and sun. High 77F. Winds SW at 5 to 10 mph.
        Tonight
        Thu 09/17
        Low 64°f
        15% Precip. / 0 in
        Cloudy. Low 64F. Winds S at 5 to 10 mph.
        Tomorrow
        Fri 09/18
        High 76°f61°f
        9% Precip. / 0 in
        Cloudy skies early, followed by partial clearing. High 76F. Winds SW at 10 to 15 mph.
        Hourly Forecast
        Now
        79°
        12PM
        80°
        1PM
        80°
        2PM
        79°
        3PM
        76°
        4PM
        75°
        5PM
        74°
        6PM
        72°
        6:55PM
        Sunset
        7PM
        70°
        8PM
        68°
        9PM
        68°
        10PM
        68°
        11PM
        67°
        12AM
        67°
        1AM
        67°
        2AM
        67°
        3AM
        67°
        4AM
        66°
        5AM
        66°
        6AM
        66°
        6:36AM
        Sunrise
        7AM
        65°
        8AM
        67°
        9AM
        69°
        10AM
        71°
        11AM
        72°
        Additional Conditions
        1. Pressure 29.99 in
        2. Visibility 10 miles
        3. Clouds Mostly Cloudy
        4. Dew Point59°F
        5. Humidity 49%
        6. Rainfall 0 in
        7. Snow Depth 0 in
        KSNA Station History
        Almanac for September 16, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 77°F 87°F 105°F 1979
        4. Low 64°F 61°F 46°F 1952
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 76°F 87°F 106°F
        4. Low 64°F 61°F 45°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:34 AM 6:55 PM
        3. Civil Twilight 6:10 AM 7:20 PM
        4. Nautical Twilight 5:40 AM 7:49PM
        5. Astronomical Twilight 5:11 AM 8:19 PM
        1. Length of Visible Light 13h 10m
        2. Length of Day 12h 20m
        3. Tomorrow will be 2 minutes 3 seconds shorter
        1. Moon 12:14 PM 10:01 PM
        2. Waxing Crescent30% 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
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        Weather Alerts
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