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 90%
Wind Speed N 0 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 09 Oct 03:53 AM PDT
Extended Forecast for

Costa Mesa CA

Coastal Flood Advisory October 9, 04:12am until October 13, 02:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 9, 04:12am until October 13, 02:00pm

    NOW until 2:00pm Tue

    Coastal Flood Advisory

  • Today

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 66. West wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 79. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 79 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of showers after 11pm. Mostly cloudy, with a low around 66. West wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 66 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 74. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    High: 74 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Columbus Day

    Columbus Day: Showers, mainly before 11am. High near 71. Chance of precipitation is 80%.

    High: 71 °F

    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before 11pm. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 84. Light northwest wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Increasing clouds, with a low around 66. West wind around 5 mph becoming calm in the evening.
Saturday
Mostly cloudy, with a high near 79. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
A chance of showers after 11pm. Mostly cloudy, with a low around 66. West wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A chance of showers. Partly sunny, with a high near 74. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Columbus Day
Showers, mainly before 11am. High near 71. Chance of precipitation is 80%.
Monday Night
Showers likely, mainly before 11pm. Mostly cloudy, with a low around 57.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Clear, with a low around 58.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Clear, with a low around 62.
Thursday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.67°N 117.89°W (Elev. 13 ft)
Last Update:
12:22 am PDT Oct 9, 2026
Forecast Valid:
4am PDT Oct 9, 2026-6pm PDT Oct 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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