Severe Thunderstorms and Heavy Rain from the Southern Plains to the Ohio Valley; Wintry Mix in the Northeast

Numerous showers and thunderstorms, some severe, are expected from the southern Plains to the Ohio Valley. The repeating nature of some showers and thunderstorms may lead to isolated flash flooding across the Ohio Valley. An area of freezing rain, with some snow on the northern edge, will cause hazardous travel conditions over portions of New England. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Partly Cloudy

47°F

8°C

Humidity 76%
Wind Speed NNE 6 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 03 Mar 10:53 PM MST
Extended Forecast for

Ontario OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. East northeast wind 5 to 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain, then showers and possibly a thunderstorm after 11am.  High near 51. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon.  Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 51 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then showers likely between 8pm and 11pm.  Mostly cloudy, with a low around 35. West northwest wind 7 to 9 mph.  Chance of precipitation is 70%.

    Low: 35 °F

    Showers
    Likely then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 52. Northwest wind 8 to 18 mph.

    High: 52 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. East northeast wind 5 to 7 mph.
Wednesday
A slight chance of rain, then showers and possibly a thunderstorm after 11am. High near 51. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then showers likely between 8pm and 11pm. Mostly cloudy, with a low around 35. West northwest wind 7 to 9 mph. Chance of precipitation is 70%.
Thursday
Mostly sunny, with a high near 52. Northwest wind 8 to 18 mph.
Thursday Night
Partly cloudy, with a low around 32. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 55.
Friday Night
Partly cloudy, with a low around 34.
Saturday
Mostly cloudy, with a high near 57.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 63.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
A 20 percent chance of rain. Partly sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario OR
 44.03°N 116.97°W (Elev. 2103 ft)
4:49 pm MST Mar 3, 2026
11pm MST Mar 3, 2026-6pm MDT Mar 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database