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.

Mostly Cloudy

48°F

9°C

Humidity 53%
Wind Speed N 0 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 12 Oct 10:53 AM MDT
Extended Forecast for

Ontario OR

  • Columbus Day

    Columbus Day: Sunny, with a high near 59. Northwest wind around 5 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: 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. Calm wind.

    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

  • Friday

    Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 73.

    High: 73 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Columbus Day
Sunny, with a high near 59. Northwest wind around 5 mph.
Tonight
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. Calm wind.
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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

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:
11am MDT Oct 12, 2026-6pm MDT Oct 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation