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

Lake Effect Snow in the Lower Great Lakes; Rain and High Elevation Snow in the West

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest Thursday afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Partly Cloudy

30°F

-1°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 30°F (-1°C)
Visibility 9.00 mi
Last update 12 Feb 01:30 AM MST
Extended Forecast for

Ontario OR

  • Overnight

    Overnight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 51. Calm wind.

    High: 51 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35. Light east southeast wind.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 11am. Cloudy, with a high near 52.

    High: 52 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Cloudy, with a low around 36.

    Low: 36 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 20 percent chance of rain. Mostly cloudy, with a high near 54.

    High: 54 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 30. Calm wind.
Thursday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 51. Calm wind.
Thursday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 28. Calm wind.
Friday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 50. Calm wind.
Friday Night
Mostly cloudy, with a low around 35. Light east southeast wind.
Saturday
A 30 percent chance of rain, mainly after 11am. Cloudy, with a high near 52.
Saturday Night
A 20 percent chance of rain. Cloudy, with a low around 36.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 54.
Sunday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 34.
Washington's Birthday
A 40 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 50.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 34.
Tuesday
Rain and snow likely. Mostly cloudy, with a high near 48. Chance of precipitation is 60%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario OR
 44.03°N 116.97°W (Elev. 2103 ft)
Last Update:
2:07 pm MST Feb 11, 2026
Forecast Valid:
1am MST Feb 12, 2026-6pm MST Feb 18, 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