National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Ontario International Airport (KONT)

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

Mist

63°F

17°C

Humidity 88%
Wind Speed WSW 6 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 59°F (15°C)
Visibility 5.00 mi
Last update 12 Jun 02:30 AM PDT
Extended Forecast for

2 Miles SW Rancho Cucamonga CA

  • Overnight

    Overnight: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 86. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 61. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.

    Low: 61 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87. Light southwest wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. West wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 91.

    High: 91 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 62. Calm wind.
Thursday
Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 86. Light and variable wind becoming west 10 to 15 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 61. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.
Friday
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87. Light southwest wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 63. West wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Saturday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 64.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Patchy fog. Otherwise, sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Rancho Cucamonga CA
 34.1°N 117.59°W (Elev. 1224 ft)
Last Update:
2:22 am PDT Jun 12, 2025
Forecast Valid:
2am PDT Jun 12, 2025-6pm PDT Jun 18, 2025
 
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