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

Ontario Municipal Airport (KONO)

Lat: 44.01424°NLon: 117.00808°WElev: 2185.0ft.

Partly Cloudy

45°F

7°C

Humidity 55%
Wind Speed WNW 8 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 12 Oct 12:53 AM MDT
Extended Forecast for

Ontario OR

  • Overnight

    Overnight: Partly cloudy, with a low around 38. West wind 5 to 8 mph.

    Low: 38 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 59. West wind 3 to 5 mph.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Patchy frost after 4am. Otherwise, mostly clear, with a low around 36. Northwest wind 5 to 7 mph.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Tuesday

    Tuesday: Areas of frost before 10am. Otherwise, sunny, with a high near 68. West northwest wind 3 to 7 mph.

    High: 68 °F

    Areas Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy frost after 5am. Otherwise, clear, with a low around 34. North northwest wind around 6 mph becoming calm after midnight.

    Low: 34 °F

    Clear then
    Patchy Frost

  • Wednesday

    Wednesday: Areas of frost before 10am. Otherwise, sunny, with a high near 70.

    High: 70 °F

    Areas Frost
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 5am. Otherwise, clear, with a low around 37.

    Low: 37 °F

    Clear then
    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 10am. Otherwise, sunny, with a high near 72.

    High: 72 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 38. West wind 5 to 8 mph.
Columbus Day
Sunny, with a high near 59. West wind 3 to 5 mph.
Monday Night
Patchy frost after 4am. Otherwise, mostly clear, with a low around 36. Northwest wind 5 to 7 mph.
Tuesday
Areas of frost before 10am. Otherwise, sunny, with a high near 68. West northwest wind 3 to 7 mph.
Tuesday Night
Patchy frost after 5am. Otherwise, clear, with a low around 34. North northwest wind around 6 mph becoming calm after midnight.
Wednesday
Areas of frost before 10am. Otherwise, sunny, with a high near 70.
Wednesday Night
Patchy fog after 5am. Otherwise, clear, with a low around 37.
Thursday
Areas of fog before 10am. Otherwise, sunny, with a high near 72.
Thursday Night
Clear, with a low around 38.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 39.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Patchy fog. Otherwise, sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario OR
 44.03°N 116.97°W (Elev. 2103 ft)
Last Update:
12:29 am MDT Oct 12, 2026
Forecast Valid:
1am MDT Oct 12, 2026-6pm MDT Oct 18, 2026
 
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