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.

Partly Cloudy

77°F

25°C

Humidity 65%
Wind Speed SSW 13 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 24 Jul 03:35 PM PDT
Extended Forecast for

Costa Mesa CA

Heat Advisory July 24, 03:47pm until July 27, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 24, 03:47pm until July 27, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Tonight

    Low: 69 °F

    Mostly Clear

  • Saturday

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

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Patchy Fog

  • Sunday

    Sunday: Mostly sunny, with a high near 83. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 84. Light south wind becoming southwest 5 to 10 mph in the morning.
Saturday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 83. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Increasing clouds, with a low around 69.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 70.
Friday
Mostly sunny, with a high near 84.
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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:
2:02 pm PDT Jul 24, 2026
Forecast Valid:
3pm PDT Jul 24, 2026-6pm PDT Jul 31, 2026
 
Forecast Discussion
 
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Additional Resources

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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