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

63°F

17°C

Humidity 77%
Wind Speed N 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 55°F (13°C)
Visibility 8.00 mi
Last update 13 May 01:05 AM PDT
Extended Forecast for

Costa Mesa CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 57. South wind around 5 mph.

    Low: 57 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 71. Light west wind becoming southwest 5 to 10 mph in the afternoon.

    High: 71 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 55. West wind 5 to 10 mph becoming light and variable after midnight.

    Low: 55 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 71. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 71 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 56. Southwest wind around 5 mph becoming south after midnight.

    Low: 56 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 71.

    High: 71 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 57. South wind around 5 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 71. Light west wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 55. West wind 5 to 10 mph becoming light and variable after midnight.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 71. Light south wind becoming southwest 5 to 10 mph in the morning.
Thursday Night
Increasing clouds, with a low around 56. Southwest wind around 5 mph becoming south after midnight.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 57.
Monday
Mostly sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Mostly sunny, with a high near 78.
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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:
12:53 am PDT May 13, 2026
Forecast Valid:
1am PDT May 13, 2026-6pm PDT May 19, 2026
 
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