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

Hazardous Weather Conditions

Current conditions at

John Wayne-Orange County Airport (KSNA)

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

haze

68°F

20°C

Humidity 82%
Wind Speed WSW 4 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 63°F (17°C)
Visibility 6.00 mi
Last update 04 Jul 11:35 PM PDT
Extended Forecast for

Costa Mesa CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm.

    Low: 63 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 79. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 79 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear during the early evening, then becoming mostly cloudy, with a low around 65. West wind 5 to 10 mph becoming light in the evening.

    Low: 65 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 78 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 64. Southwest wind 5 to 10 mph becoming light south after midnight.

    Low: 64 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 76.

    High: 76 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 64.

    Low: 64 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 78.

    High: 78 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm.
Sunday
Mostly sunny, with a high near 79. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear during the early evening, then becoming mostly cloudy, with a low around 65. West wind 5 to 10 mph becoming light in the evening.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 64. Southwest wind 5 to 10 mph becoming light south after midnight.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 76.
Tuesday Night
Increasing clouds, with a low around 64.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 76.
Friday Night
Increasing clouds, with a low around 65.
Saturday
Partly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.67°N 117.92°W (Elev. 3 ft)
Last Update:
11:53 pm PDT Jul 4, 2026
Forecast Valid:
11pm PDT Jul 4, 2026-6pm PDT Jul 11, 2026
 
Forecast Discussion
 
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Additional Resources

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