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.

Mist

61°F

16°C

Humidity 87%
Wind Speed ESE 4 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 57°F (14°C)
Visibility 6.00 mi
Last update 27 Mar 04:35 AM PDT
Extended Forecast for

Costa Mesa CA

  • Today

    Today: Patchy fog before 11am. Otherwise, partly sunny, with a high near 75. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 75 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 56. West wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 78. Light northwest wind becoming west 5 to 10 mph in the afternoon.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. West wind around 5 mph becoming calm after midnight.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 77. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 56.

    Low: 56 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 75.

    High: 75 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers. Cloudy, with a high near 71.

    High: 71 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Patchy fog before 11am. Otherwise, partly sunny, with a high near 75. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 56. West wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 78. Light northwest wind becoming west 5 to 10 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 57. West wind around 5 mph becoming calm after midnight.
Sunday
Sunny, with a high near 77. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Increasing clouds, with a low around 56.
Monday
Mostly cloudy, with a high near 75.
Monday Night
Mostly cloudy, with a low around 57.
Tuesday
A slight chance of showers. Cloudy, with a high near 71.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 55.
Wednesday
A slight chance of showers. Partly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Partly sunny, with a high near 71.
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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:
12:07 am PDT Mar 27, 2026
Forecast Valid:
4am PDT Mar 27, 2026-6pm PDT Apr 2, 2026
 
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Additional Resources

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Chance of Precipitation