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Hazardous Weather Conditions

Current conditions at

Ontario International Airport (KONT)

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

Overcast

63°F

17°C

Humidity 80%
Wind Speed SW 4 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 57°F (14°C)
Visibility 9.00 mi
Last update 18 Jun 03:21 AM PDT
Extended Forecast for

3 Miles SSE Rancho Cucamonga CA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 60. West wind around 5 mph.

    Low: 60 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 80. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 58. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Clear
    then Patchy
    Fog

  • Juneteenth

    Juneteenth: Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 80. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. Southwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, sunny, with a high near 79.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 60. West wind around 5 mph.
Thursday
Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 80. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 58. West wind 5 to 10 mph, with gusts as high as 20 mph.
Juneteenth
Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 80. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Mostly clear, with a low around 57. Southwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 20 mph.
Saturday
Patchy fog before 11am. Otherwise, sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 82.
Sunday Night
Clear, with a low around 59.
Monday
Sunny, with a high near 88.
Monday Night
Clear, with a low around 62.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Clear, with a low around 66.
Wednesday
Sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Rancho Cucamonga CA
 34.09°N 117.53°W (Elev. 1106 ft)
Last Update:
12:48 am PDT Jun 18, 2026
Forecast Valid:
3am PDT Jun 18, 2026-6pm PDT Jun 24, 2026
 
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