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      Extreme Heat Warning
      until 8:00 PM PDT
      +1 more alert
      Elev 75 ft, 33.657 °N 117.911 °W

      Costa Mesa, CA

      College Park Station80°
      Updated: 11:04 PM PDT on October 4, 2026 (GMT -7)
      9 minutes ago
      102°
      69°
      80
      Feels Like 81
      Clear
      N
      1
      Similar temperature is expected tomorrow
      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
        Tonight
        Mon 10/05
        Low 75°f
         1% Precip. / 0 in
        Clear skies. Low around 75F. Winds light and variable.
        Tomorrow
        Tue 10/06
        High 97°f
         0% Precip. / 0 in
        Mainly sunny. Hot. High 97F. Winds W at 10 to 15 mph.
        Tomorrow night
        Tue 10/06
        Low 74°f
         4% Precip. / 0 in
        Clear skies. Low 74F. Winds SSW at 5 to 10 mph.
        Hourly Forecast
        Now
        77°
        12AM
        77°
        1AM
        76°
        2AM
        76°
        3AM
        78°
        4AM
        78°
        5AM
        78°
        6AM
        77°
        6:49AM
        Sunrise
        7AM
        77°
        8AM
        79°
        9AM
        84°
        10AM
        89°
        11AM
        93°
        12PM
        95°
        1PM
        96°
        2PM
        96°
        3PM
        96°
        4PM
        95°
        5PM
        94°
        6PM
        92°
        6:30PM
        Sunset
        7PM
        89°
        8PM
        85°
        9PM
        85°
        10PM
        83°
        11PM
        81°
        Precipitation
        1%
        Pollen
        None
        Air Quality
        51
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.89 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point60°F
        5. Humidity 55%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSNA Station History
        Almanac for October 4, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 102°F 73°F 93°F 1971
        4. Low 69°F 62°F 52°F 1965
        5. Rain/Snow Depth
        6. Precipitation 0 in 3 in -
        7. Snow 0 in 0 in -
        Almanac for October 5, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 97°F 73°F 94°F
        4. Low 75°F 62°F 50°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:48 AM 6:31 PM
        3. Civil Twilight 6:23 AM 6:56 PM
        4. Nautical Twilight 5:54 AM 7:25PM
        5. Astronomical Twilight 5:25 AM 7:54 PM
        1. Length of Visible Light 12h 33m
        2. Length of Day 11h 43m
        3. Tomorrow will be 2 minutes 3 seconds shorter
        1. Moon 12:20 AM 3:10 PM
        2. Waning Crescent41% of the Moon is Illuminated
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
        Nov 1
        Waning Half Last Qtr
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