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.

Partly Cloudy

72°F

22°C

Humidity 73%
Wind Speed SW 5 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 12 Jul 11:05 AM PDT
Extended Forecast for

Costa Mesa CA

  • Today

    Today: Mostly sunny, with a high near 76. Southwest wind 5 to 10 mph.

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 77. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 77 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 79. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 79 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 76. Southwest wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Light southwest wind increasing to 5 to 10 mph in the morning.
Monday Night
Increasing clouds, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 79. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 70.
Saturday
Partly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.67°N 117.92°W (Elev. 3 ft)
Last Update:
12:12 am PDT Jul 12, 2026
Forecast Valid:
11am PDT Jul 12, 2026-6pm PDT Jul 18, 2026
 
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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