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.

Clear

57°F

14°C

Humidity 44%
Wind Speed NNW 6 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 29 Mar 10:20 PM MDT
Extended Forecast for

Ontario OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. Northwest wind 8 to 10 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers between 2pm and 3pm. Mostly cloudy, with a high near 53. North northwest wind 10 to 14 mph.

    High: 53 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. North wind 6 to 11 mph becoming light northwest after midnight.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon. Mostly cloudy, with a high near 57. Calm wind.

    High: 57 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 41. Southeast wind around 5 mph becoming calm in the evening.

    Low: 41 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.

    High: 59 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before midnight, then showers likely. Low around 40. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Showers

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 52. Chance of precipitation is 70%.

    High: 52 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 32.

    Low: 32 °F

    Slight Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. Northwest wind 8 to 10 mph.
Monday
A 20 percent chance of showers between 2pm and 3pm. Mostly cloudy, with a high near 53. North northwest wind 10 to 14 mph.
Monday Night
Mostly cloudy, with a low around 33. North wind 6 to 11 mph becoming light northwest after midnight.
Tuesday
A 20 percent chance of showers after noon. Mostly cloudy, with a high near 57. Calm wind.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 41. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Showers likely. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.
Wednesday Night
Showers and possibly a thunderstorm before midnight, then showers likely. Low around 40. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers likely. Mostly cloudy, with a high near 52. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 32.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 32.
Saturday
Sunny, with a high near 63.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Sunny, with a high near 67.
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 pm MDT Mar 29, 2026
Forecast Valid:
10pm MDT Mar 29, 2026-6pm MDT Apr 5, 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