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

64°F

18°C

Humidity 72%
Wind Speed SSE 5 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 55°F (13°C)
Visibility 7.00 mi
Last update 21 Jun 07:20 AM PDT
Extended Forecast for

Costa Mesa CA

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 72. Southeast wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 72 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 61. Southeast wind around 5 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 75. Southeast wind 5 to 10 mph becoming west in the afternoon.

    High: 75 °F

    Gradual
    Clearing

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 61. Southwest wind around 5 mph becoming southeast after midnight.

    Low: 61 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 73. Southeast wind 5 to 10 mph.

    High: 73 °F

    Partly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 60.

    Low: 60 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 73.

    High: 73 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 59.

    Low: 59 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 75.

    High: 75 °F

    Decreasing
    Clouds

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 72. Southeast wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Tonight
Increasing clouds, with a low around 61. Southeast wind around 5 mph.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 75. Southeast wind 5 to 10 mph becoming west in the afternoon.
Sunday Night
Increasing clouds, with a low around 61. Southwest wind around 5 mph becoming southeast after midnight.
Monday
Partly sunny, with a high near 73. Southeast wind 5 to 10 mph.
Monday Night
Increasing clouds, with a low around 60.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 73.
Tuesday Night
Increasing clouds, with a low around 59.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 75.
Wednesday Night
Increasing clouds, with a low around 61.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 75.
Thursday Night
Increasing clouds, with a low around 62.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 77.
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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:
1:16 am PDT Jun 21, 2025
Forecast Valid:
7am PDT Jun 21, 2025-6pm PDT Jun 27, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation