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

60°F

16°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 01 Mar 03:53 AM PST
Extended Forecast for

Costa Mesa CA

  • Today

    Today: Areas of fog before 10am. Otherwise, sunny, with a high near 80. Light southwest wind becoming west 5 to 10 mph in the afternoon.

    High: 80 °F

    Areas Fog
    then Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 53. Southwest wind around 5 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 69. Southwest wind 5 to 10 mph.

    High: 69 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, increasing clouds, with a low around 50. South wind around 5 mph becoming east after midnight.

    Low: 50 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 72. Calm wind becoming west around 5 mph in the afternoon.

    High: 72 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 51.

    Low: 51 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 73.

    High: 73 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

Today
Areas of fog before 10am. Otherwise, sunny, with a high near 80. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Tonight
Increasing clouds, with a low around 53. Southwest wind around 5 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 69. Southwest wind 5 to 10 mph.
Monday Night
Patchy fog after 4am. Otherwise, increasing clouds, with a low around 50. South wind around 5 mph becoming east after midnight.
Tuesday
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 72. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 51.
Wednesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 73.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 75.
Thursday Night
Clear, with a low around 50.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.69°N 117.92°W (Elev. 3 ft)
Last Update:
1:06 am PST Mar 1, 2026
Forecast Valid:
4am PST Mar 1, 2026-6pm PST Mar 7, 2026
 
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