National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

John Wayne-Orange County Airport (KSNA)

Lat: 33.6798°NLon: 117.8674°WElev: 39.0ft.

Clear

79°F

26°C

Humidity 61%
Wind Speed SSW 9 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 07 Aug 06:20 PM PDT
Extended Forecast for

Costa Mesa CA

  • Tonight

    Tonight: Increasing clouds, with a low around 68. Southwest wind 5 to 10 mph becoming light in the evening.

    Low: 68 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 82. Light northwest wind becoming west 5 to 10 mph in the afternoon.

    High: 82 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 68. West wind 5 to 10 mph becoming light southwest in the evening.

    Low: 68 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 81. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 81 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 81.

    High: 81 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 68.

    Low: 68 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 68. Southwest wind 5 to 10 mph becoming light in the evening.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 82. Light northwest wind becoming west 5 to 10 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 68. West wind 5 to 10 mph becoming light southwest in the evening.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 81. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 81.
Monday Night
Increasing clouds, with a low around 68.
Tuesday
Partly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Increasing clouds, with a low around 66.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.67°N 117.92°W (Elev. 3 ft)
Last Update:
1:10 pm PDT Aug 7, 2026
Forecast Valid:
6pm PDT Aug 7, 2026-6pm PDT Aug 14, 2026
 
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Additional Resources

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