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

63°F

17°C

Humidity 80%
Wind Speed NE 3 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 19 Mar 05:53 AM PDT
Extended Forecast for

3 Miles SE Costa Mesa CA

Heat Advisory March 19, 06:13am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 19, 06:13am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 87 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm after midnight.

    Low: 59 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 86. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm after midnight.

    Low: 58 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 57.

    Low: 57 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 80.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 57.

    Low: 57 °F

    Patchy Fog

Detailed Forecast

Today
Patchy fog before 11am. Otherwise, sunny, with a high near 87. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm after midnight.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 86. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Friday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm after midnight.
Saturday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Saturday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 57.
Sunday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 80.
Sunday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 57.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 83.
Monday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 58.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 84.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 57.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Costa Mesa CA
 33.65°N 117.89°W (Elev. 3 ft)
Last Update:
1:34 am PDT Mar 19, 2026
Forecast Valid:
6am PDT Mar 19, 2026-6pm PDT Mar 25, 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