National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

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 SSW 4 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Jun 08:05 AM PDT
Extended Forecast for

Costa Mesa CA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 74. Light west wind becoming southwest 5 to 10 mph in the morning.

    High: 74 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 63. West wind 5 to 10 mph becoming light after midnight.

    Low: 63 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 73. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 73 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming light after midnight.

    Low: 61 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Cloudy through mid morning, then gradual clearing, with a high near 73. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 73 °F

    Becoming
    Sunny

  • Friday Night

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

    Low: 59 °F

    Increasing
    Clouds

  • Saturday

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

    High: 73 °F

    Becoming
    Sunny

  • Saturday Night

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

    Low: 59 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 73.

    High: 73 °F

    Becoming
    Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 74. Light west wind becoming southwest 5 to 10 mph in the morning.
Tonight
Increasing clouds, with a low around 63. West wind 5 to 10 mph becoming light after midnight.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 73. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming light after midnight.
Juneteenth
Cloudy through mid morning, then gradual clearing, with a high near 73. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Increasing clouds, with a low around 59.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 73.
Saturday Night
Increasing clouds, with a low around 59.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 73.
Sunday Night
Increasing clouds, with a low around 60.
Monday
Partly sunny, then gradually becoming sunny, with a high near 74.
Monday Night
Increasing clouds, with a low around 61.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.67°N 117.89°W (Elev. 13 ft)
Last Update:
12:02 am PDT Jun 17, 2026
Forecast Valid:
8am PDT Jun 17, 2026-6pm PDT Jun 23, 2026
 
Forecast Discussion
 
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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