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.

Overcast

66°F

19°C

Humidity 72%
Wind Speed SW 9 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 29 Jun 12:20 PM PDT
Extended Forecast for

Costa Mesa CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 73. South wind around 10 mph.

    High: 73 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy drizzle after 11pm. Increasing clouds, with a low around 62. South wind around 5 mph.

    Low: 62 °F

    Patchy
    Drizzle

  • Tuesday

    Tuesday: Patchy drizzle before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 72. South wind 5 to 10 mph becoming southwest in the afternoon.

    High: 72 °F

    Patchy
    Drizzle then
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 72. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 72 °F

    Becoming
    Sunny

  • Wednesday Night

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

    Low: 59 °F

    Increasing
    Clouds

  • Thursday

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

    High: 73 °F

    Decreasing
    Clouds

  • Thursday Night

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

    Low: 61 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 74.

    High: 74 °F

    Decreasing
    Clouds

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 73. South wind around 10 mph.
Tonight
Patchy drizzle after 11pm. Increasing clouds, with a low around 62. South wind around 5 mph.
Tuesday
Patchy drizzle before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 72. South wind 5 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Increasing clouds, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 72. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Wednesday Night
Increasing clouds, with a low around 59.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 73.
Thursday Night
Increasing clouds, with a low around 61.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 62.
Independence Day
Partly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.69°N 117.92°W (Elev. 3 ft)
Last Update:
12:22 pm PDT Jun 29, 2026
Forecast Valid:
12pm PDT Jun 29, 2026-6pm PDT Jul 5, 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