Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

72°F

22°C

Humidity 37%
Wind Speed ENE 3 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 05 Sep 02:35 PM MDT
Extended Forecast for

3 Miles S Nyssa OR

  • This Afternoon

    This Afternoon: Sunny, with a high near 71. Light north northwest wind.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 50. North wind around 5 mph becoming calm  in the evening.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 75. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 75 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 5am, then scattered showers.  Patchy fog after midnight.  Otherwise, mostly cloudy, with a low around 49. West northwest wind 5 to 10 mph becoming light and variable  after midnight.  Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely and
    Patchy Fog

  • Labor Day

    Labor Day: Scattered showers before noon.  Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 68. West northwest wind around 6 mph becoming calm  in the afternoon.  Chance of precipitation is 30%.

    High: 68 °F

    Scattered
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 10pm.  Otherwise, mostly clear, with a low around 44.

    Low: 44 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 10am.  Otherwise, sunny, with a high near 74.

    High: 74 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm.  Otherwise, mostly clear, with a low around 48.

    Low: 48 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog between 7am and 9am.  Otherwise, mostly sunny, with a high near 78.

    High: 78 °F

    Patchy Fog
    then Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 71. Light north northwest wind.
Tonight
Partly cloudy, with a low around 50. North wind around 5 mph becoming calm in the evening.
Sunday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 75. Calm wind becoming southwest around 6 mph in the afternoon.
Sunday Night
Showers and thunderstorms likely before 5am, then scattered showers. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 49. West northwest wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 60%.
Labor Day
Scattered showers before noon. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 68. West northwest wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 30%.
Monday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 44.
Tuesday
Areas of fog before 10am. Otherwise, sunny, with a high near 74.
Tuesday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 48.
Wednesday
Patchy fog between 7am and 9am. Otherwise, mostly sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 55.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Nyssa OR
 43.83°N 116.99°W (Elev. 2211 ft)
12:29 pm MDT Sep 5, 2026
2pm MDT Sep 5, 2026-6pm MDT Sep 11, 2026
 
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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