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

91°F

33°C

Humidity 13%
Wind Speed NE 20 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 15 Oct 04:35 PM PDT
Extended Forecast for

Costa Mesa CA

Heat Advisory October 15, 04:54pm until October 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 15, 04:54pm until October 17, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Tonight

    Low: 71 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 95. East wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. East wind 5 to 10 mph becoming north in the evening. Winds could gust as high as 20 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 90. North wind 5 to 10 mph becoming southwest in the morning.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. Southwest wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 71. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 95. East wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 72. East wind 5 to 10 mph becoming north in the evening. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 90. North wind 5 to 10 mph becoming southwest in the morning.
Saturday Night
Mostly clear, with a low around 68. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 85.
Sunday Night
Clear, with a low around 64.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 59.
Wednesday
Showers likely. Mostly cloudy, with a high near 69.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 58.
Thursday
A chance of showers. Mostly sunny, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.67°N 117.92°W (Elev. 3 ft)
Last Update:
3:39 pm PDT Oct 15, 2026
Forecast Valid:
4pm PDT Oct 15, 2026-6pm PDT Oct 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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