Heavy Snow in the Northwest; Wintry Mix from the Great Lakes to Northeast

Two cold fronts will pass through the Northwest U.S. this week with the main impact being heavy mountain snow across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain to the Upper Midwest and Great Lakes today then the Northeast U.S. tonight into Wednesday. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

Lat: 44.01424° N Lon: 117.00808° W Elev: 2185.0 ft.

Overcast

45°F

7°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 06 Jan 02:55 PM MST
Detailed forecast for

Oregon Lower Treasure Valley

Tonight
Mostly cloudy with a 40 percent chance of rain. Lows 34 to 39. Southwest winds 10 to 15 mph with gusts to 25 mph.
Wednesday
Increasing clouds. A chance of rain. A chance of snow in the afternoon. Chance of precipitation 30 percent. Highs 44 to 49. West winds 10 to 15 mph with gusts to 25 mph.
Wednesday Night
Mostly cloudy with a chance of rain and snow in the evening, then partly cloudy with a slight chance of snow after midnight. Chance of precipitation 30 percent. Lows 26 to 31. Southwest winds 10 to 15 mph with gusts to 25 mph.
Thursday
Sunny. Highs 39 to 44. Breezy. West winds 10 to 20 mph.
Thursday Night
Partly cloudy. Lows 24 to 29. West winds 10 to 15 mph.
Friday
Patchy fog in the morning. Mostly sunny. Highs 38 to 43.
Friday Night
Partly cloudy. Lows 22 to 27.
Saturday Through Sunday
Mostly cloudy. Highs 35 to 42. Lows 22 to 27.
Sunday Night
Partly cloudy. Lows 23 to 28.
Monday Through Tuesday
Patchy fog in the morning. Patchy fog through the day. Partly cloudy. Highs 37 to 45. Lows 23 to 28.



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247 PM MST Tue Jan 6 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database