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

64°F

18°C

Humidity 72%
Wind Speed W 3 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 20 Jun 08:00 AM PDT
Extended Forecast for

Costa Mesa CA

  • Today

    Today: Mostly sunny, with a high near 70. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 61. West wind 5 to 10 mph becoming light after midnight.

    Low: 61 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 70. Light west wind increasing to 5 to 10 mph in the morning.

    High: 70 °F

    Gradual
    Clearing

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming light in the evening.

    Low: 61 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 72. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 72 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 61.

    Low: 61 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 73.

    High: 73 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 70. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tonight
Increasing clouds, with a low around 61. West wind 5 to 10 mph becoming light after midnight.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 70. Light west wind increasing to 5 to 10 mph in the morning.
Sunday Night
Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming light in the evening.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 72. Light southwest wind increasing to 5 to 10 mph in the morning.
Monday Night
Increasing clouds, with a low around 61.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Increasing clouds, with a low around 63.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 74.
Thursday Night
Increasing clouds, with a low around 63.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.64°N 117.91°W (Elev. 13 ft)
Last Update:
12:45 am PDT Jun 20, 2026
Forecast Valid:
8am PDT Jun 20, 2026-6pm PDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation