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Hazardous Weather Conditions

Current conditions at

Ontario International Airport (KONT)

Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.

Clear

93°F

34°C

Humidity 26%
Wind Speed WSW 12 MPH
Barometer 29.76 in (1007.79 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 18 Jun 04:20 PM PDT
Extended Forecast for

2 Miles SW Rancho Cucamonga CA

Heat Advisory June 18, 04:35pm until June 18, 08:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory June 18, 04:35pm until June 18, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 63 °F

    Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 91. Light southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 62. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 62 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 56.

    Low: 56 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 81.

    High: 81 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Tonight
Clear, with a low around 63. West wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 25 mph.
Juneteenth
Sunny, with a high near 91. Light southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Thursday Night
Clear, with a low around 62. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Friday
Sunny, with a high near 85. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 58. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Increasing clouds, with a low around 56.
Sunday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Rancho Cucamonga CA
 34.1°N 117.59°W (Elev. 1224 ft)
Last Update:
12:57 pm PDT Jun 18, 2025
Forecast Valid:
4pm PDT Jun 18, 2025-6pm PDT Jun 25, 2025
 
Forecast Discussion
 
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