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

36°F

2°C

Humidity 74%
Wind Speed N 0 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 28°F (-2°C)
Visibility 8.00 mi
Last update 19 Oct 04:35 AM MDT
Extended Forecast for

4 Miles SSW Nyssa OR

  • Today

    Today: Sunny, with a high near 73. Light and variable wind.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 41. North wind around 5 mph becoming calm in the evening.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 71. Calm wind.

    High: 71 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. Calm wind.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Chance
    Showers then
    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers, with thunderstorms also possible after noon. Areas of fog before 11am. High near 66. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers and
    Areas Fog

  • Thursday Night

    Thursday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.

    Low: 41 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 73. Light and variable wind.
Tonight
Partly cloudy, with a low around 41. North wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 71. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 43. Calm wind.
Wednesday
Mostly sunny, with a high near 74. Calm wind.
Wednesday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Thursday
Showers, with thunderstorms also possible after noon. Areas of fog before 11am. High near 66. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 58.
Friday Night
Mostly clear, with a low around 32.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 38.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Nyssa OR
 43.83°N 117.02°W (Elev. 2198 ft)
Last Update:
12:29 am MDT Oct 19, 2026
Forecast Valid:
4am MDT Oct 19, 2026-6pm MDT Oct 25, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation