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.

Mist

63°F

17°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 59°F (15°C)
Visibility 4.00 mi
Last update 09 Nov 01:20 AM PST
Extended Forecast for

Costa Mesa CA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming west around 5 mph in the afternoon.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57. Southwest wind around 5 mph becoming calm.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58. Calm wind becoming west around 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 72.

    High: 72 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 57. Calm wind.
Sunday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 57. Southwest wind around 5 mph becoming calm.
Monday
Mostly sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 58. Calm wind becoming west around 5 mph.
Veterans Day
Mostly sunny, with a high near 75.
Tuesday Night
Mostly cloudy, with a low around 58.
Wednesday
Mostly cloudy, with a high near 72.
Wednesday Night
Mostly cloudy, with a low around 57.
Thursday
Showers likely, mainly after 4pm. Mostly cloudy, with a high near 69.
Thursday Night
Showers. Mostly cloudy, with a low around 56.
Friday
A chance of showers. Partly sunny, with a high near 65.
Friday Night
A chance of showers. Mostly cloudy, with a low around 51.
Saturday
A chance of showers. Partly sunny, with a high near 64.
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:
1:02 am PST Nov 9, 2025
Forecast Valid:
1am PST Nov 9, 2025-6pm PST Nov 15, 2025
 
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