Current conditions at

John Wayne-Orange County Airport (KSNA)

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

Mostly Cloudy

75°F

24°C

Humidity 64%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 15 Aug 10:35 AM PDT
Extended Forecast for

Costa Mesa CA

  • Today

    Today: Cloudy early, then gradual clearing, with a high near 79. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 79 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Mostly cloudy, with a low around 66. West wind 5 to 10 mph becoming light  in the evening.

    Low: 66 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 80. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 80 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66. West wind 5 to 10 mph becoming light south  after midnight.

    Low: 66 °F

    Partly Cloudy

  • Monday

    Monday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 81. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 67.

    Low: 67 °F

    Patchy Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy early, then gradual clearing, with a high near 79. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 66. West wind 5 to 10 mph becoming light in the evening.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 80. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 66. West wind 5 to 10 mph becoming light south after midnight.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.67°N 117.92°W (Elev. 3 ft)
12:03 am PDT Aug 15, 2026
10am PDT Aug 15, 2026-6pm PDT Aug 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database