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.

Clear

72°F

22°C

Humidity 60%
Wind Speed SW 4 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 13 Nov 11:20 AM PST
Extended Forecast for

Costa Mesa CA

  • Today

    Today: A slight chance of showers after 4pm. Mostly sunny, with a high near 72. Southwest wind around 5 mph. Chance of precipitation is 10%.

    High: 72 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Showers, mainly after 4am. Low around 60. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 60 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 67. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 67 °F

    Heavy Rain

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 58. South wind around 5 mph becoming east after midnight. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 58 °F

    Heavy Rain

  • Saturday

    Saturday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 64. East wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    High: 64 °F

    Heavy Rain

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 55. Chance of precipitation is 80%.

    Low: 55 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly before 10am. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.

    High: 64 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 63.

    High: 63 °F

    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers after 4pm. Mostly sunny, with a high near 72. Southwest wind around 5 mph. Chance of precipitation is 10%.
Tonight
Showers, mainly after 4am. Low around 60. South wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 67. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 58. South wind around 5 mph becoming east after midnight. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Saturday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 64. East wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Saturday Night
Showers and possibly a thunderstorm. Low around 55. Chance of precipitation is 80%.
Sunday
Showers likely, mainly before 10am. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 55.
Monday
A chance of showers. Mostly cloudy, with a high near 63.
Monday Night
A chance of showers. Mostly cloudy, with a low around 51.
Tuesday
A chance of showers. Partly sunny, with a high near 63.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.67°N 117.92°W (Elev. 3 ft)
Last Update:
3:28 am PST Nov 13, 2025
Forecast Valid:
11am PST Nov 13, 2025-6pm PST Nov 19, 2025
 
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