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

75°F

24°C

Humidity 83%
Wind Speed N 0 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 07 Sep 05:35 AM PDT
Extended Forecast for

Costa Mesa CA

High Surf Advisory September 7, 05:45am until September 8, 11:00pm
Coastal Flood Advisory September 7, 05:45am until September 8, 11:00pm
Click here for hazard details and duration
High Surf Advisory
Coastal Flood Advisory
  •  
    High Surf Advisory September 7, 05:45am until September 8, 11:00pm
    Coastal Flood Advisory September 7, 05:45am until September 8, 11:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 71 °F

    Slight Chance
    T-storms

  • Labor Day

    Labor Day: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. North wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. Light west wind increasing to 5 to 10 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm after midnight.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 71. Northwest wind around 5 mph. Chance of precipitation is 20%.
Labor Day
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. North wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 86. Light west wind increasing to 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 69.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Mostly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Costa Mesa CA
 33.66°N 117.94°W (Elev. 7 ft)
Last Update:
5:35 am PDT Sep 7, 2026
Forecast Valid:
5am PDT Sep 7, 2026-6pm PDT Sep 13, 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