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.

Clear

79°F

26°C

Humidity 61%
Wind Speed S 11 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 29 Jul 01:20 PM PDT
Extended Forecast for

Costa Mesa CA

High Surf Advisory July 29, 05:00pm until August 1, 05:00pm
Coastal Flood Advisory July 29, 05:00pm until August 1, 03:00am
Heat Advisory July 31, 10:00am until August 2, 08:00pm
Click here for hazard details and duration
High Surf Advisory
Coastal Flood Advisory
Heat Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. Southwest wind around 10 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 81. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 81 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 80. Southwest wind around 10 mph.
Tonight
Increasing clouds, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 81. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 67.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 67.
Monday
Mostly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Mostly sunny, with a high near 81.
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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:
12:55 pm PDT Jul 29, 2026
Forecast Valid:
1pm PDT Jul 29, 2026-6pm PDT Aug 4, 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