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

Inclement Weather in the Pacific Northwest; Severe Thunderstorms in the Southeast; Impending Winter Storm

An approaching storm will bring rain and high elevation snow to Pacific Northwest through the weekend. Isolated severe thunderstorms are possible across parts of the Southeast today into this evening as a low strengthens over the Southeast. This system will form into a winter storm on Sunday that will bring heavy snow, high winds, and coastal flooding to the Mid-Atlantic and Northeast into Monday. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

50°F

10°C

Humidity 27%
Wind Speed SSE 17 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 21 Feb 02:35 PM MST
Extended Forecast for

Ontario Municipal OR

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 48. Southeast wind 10 to 13 mph.

    High: 48 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Southeast wind around 8 mph.

    Low: 32 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 57. South southeast wind 6 to 10 mph.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34. South southeast wind around 7 mph becoming southwest after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 55. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 55 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of rain after 11pm. Cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. High near 52. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.

    Low: 36 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain before 11am. Mostly sunny, with a high near 52.

    High: 52 °F

    Chance Rain
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 48. Southeast wind 10 to 13 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Southeast wind around 8 mph.
Sunday
Sunny, with a high near 57. South southeast wind 6 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 34. South southeast wind around 7 mph becoming southwest after midnight.
Monday
Mostly cloudy, with a high near 55. Calm wind becoming south southeast around 6 mph in the afternoon.
Monday Night
A 40 percent chance of rain after 11pm. Cloudy, with a low around 43.
Tuesday
Rain. High near 52. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of rain before 11am. Mostly sunny, with a high near 52.
Wednesday Night
Mostly clear, with a low around 29.
Thursday
Sunny, with a high near 54.
Thursday Night
Partly cloudy, with a low around 32.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario Municipal OR
 44.03°N 117.03°W (Elev. 2185 ft)
Last Update:
2:06 pm MST Feb 21, 2026
Forecast Valid:
2pm MST Feb 21, 2026-6pm MST Feb 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