Heavy Rain in the Southern U.S.; Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast

A storm system stretching from the Tennessee Valley to the Gulf Coast will bring a variety of hazards to the Eastern U.S. through Tuesday. On the south side of the system, heavy rain and thunderstorms will persist across the Southern U.S. Further north, a wintry precipitation mix is expected from the Central Appalachians to the interior Northeast through Tuesday. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Overcast

35°F

2°C

Humidity 78%
Wind Speed SW 4 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 01 Dec 07:53 PM MST
Extended Forecast for

Ontario Municipal OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 29. Light west northwest wind.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain and snow showers before 11am, then a slight chance of rain showers.  Partly sunny, with a high near 43. Light north northwest wind.  Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24. Northwest wind 5 to 7 mph becoming calm.

    Low: 24 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 42. Northwest wind 5 to 7 mph becoming calm  in the morning.

    High: 42 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Areas of fog before 11am.  Otherwise, mostly cloudy, with a high near 41.

    High: 41 °F

    Areas Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain
    and Patchy
    Fog

  • Friday

    Friday: A 50 percent chance of rain.  Patchy fog before 11am.  Otherwise, mostly cloudy, with a high near 46.

    High: 46 °F

    Chance Rain
    and Patchy
    Fog

  • Friday Night

    Friday Night: Rain likely.  Mostly cloudy, with a low around 36. Chance of precipitation is 60%.

    Low: 36 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 29. Light west northwest wind.
Tuesday
A slight chance of rain and snow showers before 11am, then a slight chance of rain showers. Partly sunny, with a high near 43. Light north northwest wind. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 24. Northwest wind 5 to 7 mph becoming calm.
Wednesday
Sunny, with a high near 42. Northwest wind 5 to 7 mph becoming calm in the morning.
Wednesday Night
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 24. Calm wind.
Thursday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 41.
Thursday Night
A 30 percent chance of rain. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 32.
Friday
A 50 percent chance of rain. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 46.
Friday Night
Rain likely. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Saturday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 51. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 33.
Sunday
A 30 percent chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 48.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 30.
Monday
A 30 percent chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario Municipal OR
 44.03°N 117°W (Elev. 2139 ft)
2:04 pm MST Dec 1, 2025
8pm MST Dec 1, 2025-6pm MST Dec 8, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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