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

75°F

24°C

Humidity 25%
Wind Speed ENE 4 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 20 Apr 04:05 PM MDT
Extended Forecast for

Nyssa OR

  • Tonight

    Tonight: Partly cloudy, with a low around 44. North northeast wind 5 to 7 mph becoming southwest after midnight.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77. South wind 5 to 10 mph becoming north in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 47. Breezy, with a west northwest wind 16 to 24 mph becoming southwest after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Showers
    Likely and
    Breezy then
    Showers

  • Wednesday

    Wednesday: Showers. High near 57. Breezy, with a west wind 18 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 57 °F

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 42. West wind 9 to 16 mph. Chance of precipitation is 70%.

    Low: 42 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 44. North northeast wind 5 to 7 mph becoming southwest after midnight.
Tuesday
Sunny, with a high near 77. South wind 5 to 10 mph becoming north in the afternoon.
Tuesday Night
Showers and possibly a thunderstorm. Low around 47. Breezy, with a west northwest wind 16 to 24 mph becoming southwest after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers. High near 57. Breezy, with a west wind 18 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 42. West wind 9 to 16 mph. Chance of precipitation is 70%.
Thursday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 61.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nyssa OR
 43.88°N 117°W (Elev. 2110 ft)
Last Update:
12:31 pm MDT Apr 20, 2026
Forecast Valid:
4pm MDT Apr 20, 2026-6pm MDT Apr 27, 2026
 
Forecast Discussion
 
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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