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.

Overcast

36°F

2°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 12 Feb 05:35 AM MST
Extended Forecast for

Ontario OR

  • Today

    Today: Patchy fog before 8am. Otherwise, partly sunny, with a high near 48. Calm wind.

    High: 48 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Patchy Fog

  • Friday

    Friday: Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 49. Calm wind.

    High: 49 °F

    Areas Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34. Light east wind.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after 11am. Cloudy, with a high near 51. Calm wind.

    High: 51 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: A 30 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 51.

    High: 51 °F

    Chance Rain

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, partly sunny, with a high near 48. Calm wind.
Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 32. Calm wind.
Friday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 49. Calm wind.
Friday Night
Mostly cloudy, with a low around 34. Light east wind.
Saturday
A 20 percent chance of rain after 11am. Cloudy, with a high near 51. Calm wind.
Saturday Night
A 20 percent chance of rain. Cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 33.
Washington's Birthday
A 30 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 51.
Monday Night
Rain likely, mainly after 11pm. Cloudy, with a low around 35. Chance of precipitation is 60%.
Tuesday
Rain and snow likely. Mostly cloudy, with a high near 50. Chance of precipitation is 60%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 50. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ontario OR
 44.03°N 116.97°W (Elev. 2103 ft)
Last Update:
2:07 am MST Feb 12, 2026
Forecast Valid:
5am MST Feb 12, 2026-6pm MST Feb 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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