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

61°F

16°C

Humidity 83%
Wind Speed N 0 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 15 Apr 11:53 PM PDT
Extended Forecast for

Costa Mesa CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 71. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 71 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Southwest wind around 5 mph becoming east after midnight.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77. Northeast wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. West wind 5 to 10 mph becoming east after midnight.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 55.

    Low: 55 °F

    Patchy Fog

  • Sunday

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

    High: 76 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 54. Calm wind.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 71. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 56. Southwest wind around 5 mph becoming east after midnight.
Friday
Sunny, with a high near 77. Northeast wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 57. West wind 5 to 10 mph becoming east after midnight.
Saturday
Sunny, with a high near 78.
Saturday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 55.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 55.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Partly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.69°N 117.92°W (Elev. 3 ft)
Last Update:
12:02 am PDT Apr 16, 2026
Forecast Valid:
12am PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
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Additional Resources

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Chance of Precipitation