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

70°F

21°C

Humidity 83%
Wind Speed N 0 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 23 Jul 05:20 AM PDT
Extended Forecast for

Costa Mesa CA

Heat Advisory July 23, 10:00am until July 27, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Patchy fog before 8am. Otherwise, sunny, with a high near 84. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 71. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 71. South wind 5 to 10 mph becoming light after midnight.

    Low: 71 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 84. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 72.

    Low: 72 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 85.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 84. Light and variable wind becoming west 5 to 10 mph in the morning.
Tonight
Mostly clear, with a low around 71. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 84. Light south wind becoming southwest 5 to 10 mph in the morning.
Friday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 71. South wind 5 to 10 mph becoming light after midnight.
Saturday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 84. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Saturday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 72.
Sunday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
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:
12:34 am PDT Jul 23, 2026
Forecast Valid:
5am PDT Jul 23, 2026-6pm PDT Jul 29, 2026
 
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Additional Resources

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