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.

Overcast

64°F

18°C

Humidity 82%
Wind Speed ESE 5 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 23 Jun 01:35 AM PDT
Extended Forecast for

Costa Mesa CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 75. Light west wind becoming southwest 5 to 10 mph in the morning.

    High: 75 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 63. West wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 76. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 76 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 62. Southwest wind 5 to 10 mph becoming light after midnight.

    Low: 62 °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

  • Friday Night

    Friday Night: Increasing clouds, with a low around 63.

    Low: 63 °F

    Increasing
    Clouds

Detailed Forecast

Overnight
Mostly cloudy, with a low around 61. Calm wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 75. Light west wind becoming southwest 5 to 10 mph in the morning.
Tuesday Night
Increasing clouds, with a low around 63. West wind around 5 mph becoming calm in the evening.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 76. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Wednesday Night
Increasing clouds, with a low around 62. Southwest wind 5 to 10 mph becoming light after midnight.
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
Increasing clouds, with a low around 63.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 74.
Saturday Night
Increasing clouds, with a low around 62.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 72.
Sunday Night
Increasing clouds, with a low around 60.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 72.
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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:
12:14 am PDT Jun 23, 2026
Forecast Valid:
1am PDT Jun 23, 2026-6pm PDT Jun 29, 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