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.

Overcast

63°F

17°C

Humidity 82%
Wind Speed S 4 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 22 Mar 10:20 AM PDT
Extended Forecast for

Costa Mesa CA

  • Today

    Today: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 77. Southwest wind 5 to 10 mph.

    High: 77 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 57. South wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 57. South wind around 5 mph becoming calm after midnight.

    Low: 57 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, sunny, with a high near 80. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 77. Southwest wind 5 to 10 mph.
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 57. South wind around 5 mph becoming calm in the evening.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 57. South wind around 5 mph becoming calm after midnight.
Tuesday
Patchy fog before 11am. Otherwise, sunny, with a high near 80. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Partly sunny, with a high near 83.
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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:
1:03 am PDT Mar 22, 2026
Forecast Valid:
10am PDT Mar 22, 2026-6pm PDT Mar 28, 2026
 
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Additional Resources

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