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 77%
Wind Speed N 0 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Mar 06:00 AM PDT
Extended Forecast for

3 Miles WNW Irvine CA

Heat Advisory March 17, 06:20am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 17, 06:20am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 61. Southwest wind around 5 mph becoming calm after midnight.

    Low: 61 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. Light west wind increasing to 5 to 10 mph in the afternoon.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 90. Light west wind increasing to 5 to 10 mph in the afternoon.
Tonight
Clear, with a low around 61. Southwest wind around 5 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 88. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 87. Light west wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 61.
Saturday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81.
Saturday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 59.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 78.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 58.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Irvine CA
 33.67°N 117.86°W (Elev. 3 ft)
Last Update:
12:38 am PDT Mar 17, 2026
Forecast Valid:
6am PDT Mar 17, 2026-6pm PDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation