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

77°F

25°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 29 Aug 02:00 AM PDT
Extended Forecast for

Irvine CA

Extreme Heat Warning August 29, 02:23am until August 29, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 29, 02:23am until August 29, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Overnight

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. Southwest wind around 5 mph becoming calm after midnight.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68. Southwest wind around 5 mph becoming calm after midnight.

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 74. Calm wind.
Saturday
Sunny, with a high near 92. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 71. Southwest wind around 5 mph becoming calm after midnight.
Sunday
Sunny, with a high near 87. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 68. Southwest wind around 5 mph becoming calm after midnight.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 66.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 85.
Wednesday Night
Mostly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
Partly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Irvine CA
 33.68°N 117.81°W (Elev. 56 ft)
Last Update:
12:13 am PDT Aug 29, 2026
Forecast Valid:
2am PDT Aug 29, 2026-6pm PDT Sep 4, 2026
 
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Additional Resources

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Chance of Precipitation