National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

John Wayne-Orange County Airport (KSNA)

Lat: 33.6798°NLon: 117.8674°WElev: 39.0ft.

Clear

73°F

23°C

Humidity 33%
Wind Speed S 8 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 09 Feb 01:35 PM PST
Extended Forecast for

Costa Mesa CA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 75. Southwest wind around 5 mph.

    High: 75 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 54. Southeast wind around 5 mph.

    Low: 54 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: A chance of showers after 4pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 67. South wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Patchy Fog
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 10pm. Cloudy, with a low around 55. South wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 10am. Mostly cloudy, with a high near 64. South wind 10 to 15 mph becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 64 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 75. Southwest wind around 5 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 54. Southeast wind around 5 mph.
Tuesday
A chance of showers after 4pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 67. South wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers likely, mainly after 10pm. Cloudy, with a low around 55. South wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, mainly before 10am. Mostly cloudy, with a high near 64. South wind 10 to 15 mph becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 49.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
A slight chance of showers. Increasing clouds, with a low around 49.
Sunday
A chance of showers. Mostly cloudy, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.66°N 117.94°W (Elev. 7 ft)
Last Update:
12:39 pm PST Feb 9, 2026
Forecast Valid:
1pm PST Feb 9, 2026-6pm PST Feb 15, 2026
 
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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