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.

Rain

68°F

20°C

Humidity 81%
Wind Speed SE 9 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 27 Sep 01:53 AM PDT
Extended Forecast for

Costa Mesa CA

  • Overnight

    Overnight: Cloudy, with a low around 65. South wind around 5 mph.

    Low: 65 °F

    Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 75. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 64. South wind around 5 mph.

    Low: 64 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 76. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 76 °F

    Cloudy

  • Sunday Night

    Sunday Night: Cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 76.

    High: 76 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Cloudy, with a low around 62.

    Low: 62 °F

    Cloudy

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 75.

    High: 75 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 62.

    Low: 62 °F

    Increasing
    Clouds

Detailed Forecast

Overnight
Cloudy, with a low around 65. South wind around 5 mph.
Saturday
A slight chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 75. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 64. South wind around 5 mph.
Sunday
Cloudy, with a high near 76. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Sunday Night
Cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 76.
Monday Night
Cloudy, with a low around 62.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 75.
Tuesday Night
Increasing clouds, with a low around 62.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 77.
Wednesday Night
Patchy fog. Otherwise, increasing clouds, with a low around 62.
Thursday
Patchy fog. Otherwise, mostly sunny, with a high near 77.
Thursday Night
Increasing clouds, with a low around 63.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 77.
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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:
2:01 am PDT Sep 27, 2025
Forecast Valid:
2am PDT Sep 27, 2025-6pm PDT Oct 3, 2025
 
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