National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall and Severe Thunderstorms in the Midwest and Ohio Valley Tuesday

Multiple rounds of severe thunderstorms appear likely Tuesday across the Midwest and Ohio Valley, with severe wind gusts in excess of 75 mph as the primary threat. Heavy to excessive rainfall may lead to considerable flash and urban flooding impacts Tuesday across portions of the Ohio Valley. A Moderate Risk (level 3 of 4) of excessive rainfall has been issued. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

81°F

27°C

Humidity 18%
Wind Speed NNE 4 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 10 Aug 10:20 PM MDT
Extended Forecast for

Nyssa OR

  • Tonight

    Tonight: Patchy smoke after 2am. Mostly clear, with a low around 61. Northwest wind 5 to 7 mph.

    Low: 61 °F

    Mostly Clear
    then Patchy
    Smoke

  • Tuesday

    Tuesday: Patchy smoke. Sunny and hot, with a high near 95. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 95 °F

    Patchy Smoke

  • Tuesday Night

    Tuesday Night: Patchy smoke. Mostly clear, with a low around 62. Calm wind becoming northwest 5 to 8 mph in the evening.

    Low: 62 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Patchy smoke before 7am. Sunny and hot, with a high near 92. Northwest wind 5 to 8 mph.

    High: 92 °F

    Patchy Smoke
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62. West northwest wind 5 to 9 mph.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before noon. Mostly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

Tonight
Patchy smoke after 2am. Mostly clear, with a low around 61. Northwest wind 5 to 7 mph.
Tuesday
Patchy smoke. Sunny and hot, with a high near 95. Calm wind becoming north northwest around 5 mph in the afternoon.
Tuesday Night
Patchy smoke. Mostly clear, with a low around 62. Calm wind becoming northwest 5 to 8 mph in the evening.
Wednesday
Patchy smoke before 7am. Sunny and hot, with a high near 92. Northwest wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 62. West northwest wind 5 to 9 mph.
Thursday
Partly sunny, with a high near 88.
Thursday Night
A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 60.
Friday
A 30 percent chance of showers before noon. Mostly sunny, with a high near 87.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers before noon. Mostly sunny, with a high near 89.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 59.
Sunday
Mostly sunny and hot, with a high near 90.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Partly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nyssa OR
 43.88°N 117°W (Elev. 2110 ft)
Last Update:
12:29 pm MDT Aug 10, 2026
Forecast Valid:
10pm MDT Aug 10, 2026-6pm MDT Aug 17, 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