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

63°F

17°C

Humidity 72%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 08 Dec 07:20 PM PST
Extended Forecast for

Costa Mesa CA

  • Tonight

    Tonight: Mostly clear, with a low around 49. North wind around 5 mph becoming calm after midnight.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. North wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. South wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Mostly clear, with a low around 49. North wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 51. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 52. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 73.
Friday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 48.
Saturday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 70.
Saturday Night
Patchy fog. Otherwise, increasing clouds, with a low around 51.
Sunday
Patchy fog. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 68.
Sunday Night
Increasing clouds, with a low around 51.
Monday
Partly sunny, with a high near 68.
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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:
1:01 pm PST Dec 8, 2025
Forecast Valid:
7pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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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