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.

Partly Cloudy

69°F

21°C

Humidity 58%
Wind Speed SSW 10 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 11 Apr 10:53 AM PDT
Extended Forecast for

Costa Mesa CA

  • Today

    Today: Sunny, with a high near 68. Southwest wind 5 to 10 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers after 11pm. Increasing clouds, with a low around 55. West wind 5 to 10 mph becoming south after midnight. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 11am. High near 66. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers before 11pm. Partly cloudy, with a low around 52. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 67. West wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 67 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 68. Southwest wind 5 to 10 mph.
Tonight
A slight chance of showers after 11pm. Increasing clouds, with a low around 55. West wind 5 to 10 mph becoming south after midnight. Chance of precipitation is 20%.
Sunday
Showers, with thunderstorms also possible after 11am. High near 66. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A slight chance of showers before 11pm. Partly cloudy, with a low around 52. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 67. West wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Clear, with a low around 51.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Increasing clouds, with a low around 54.
Thursday
Partly sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.69°N 117.92°W (Elev. 3 ft)
Last Update:
12:31 am PDT Apr 11, 2026
Forecast Valid:
11am PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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