Wind and Rain in the Northeast; Atmospheric River to Impact the West

A cold front will cross the Great Lakes and Northeast U.S. through today with gusty winds and areas of rain showers. A strong atmospheric river is then expected to move into the Northwest by midweek bringing a threat for moderate to heavy rainfall and flooding, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Mostly Cloudy

54°F

12°C

Humidity 43%
Wind Speed SE 5 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 03 Nov 02:35 PM MST
Detailed forecast for

Oregon Lower Treasure Valley

Tonight
Rain showers likely, mainly after midnight. Chance of rain 60 percent. Lows 39 to 44. Light winds.
Tuesday
Mostly cloudy. Areas of fog in the morning. A chance of rain showers, mainly in the afternoon. Chance of rain 30 percent. Highs 56 to 61. Light winds.
Tuesday Night
Mostly cloudy. A chance of rain showers in the evening. Patchy fog. Chance of rain 40 percent. Lows 42 to 47. Light winds.
Wednesday
Patchy fog in the morning. Rain showers likely, mainly in the afternoon. Chance of rain 60 percent. Highs 57 to 62. Light winds in the morning, becoming south 10 to 15 mph with gusts to 25 mph in the afternoon.
Wednesday Night
Rain showers likely, mainly in the evening. Chance of rain 60 percent. Lows 38 to 43. Southwest winds around 10 mph with gusts to 20 mph.
Thursday
Partly cloudy with a 20 percent chance of rain showers. Highs 56 to 61.
Thursday Night
Rain showers. Chance of rain 80 percent. Lows 42 to 47.
Friday
Patchy fog in the morning. Rain showers likely in the morning, then partly cloudy with a chance of rain showers in the afternoon. Chance of rain 70 percent. Highs 54 to 59.
Friday Night
Partly cloudy. A slight chance of rain showers in the evening. Patchy fog after midnight. Chance of rain 20 percent. Colder with lows 31 to 36.
Saturday
Areas of fog in the morning. Mostly sunny. Highs 50 to 55.
Saturday Night
Mostly cloudy. Patchy fog after midnight. Lows 31 to 36.
Sunday
Areas of fog in the morning. Sunny. Highs 53 to 58.
Sunday Night
Partly cloudy. Lows 34 to 39.
Monday
Patchy fog in the morning. Mostly sunny. Highs 53 to 58.



Basemap Options
Click map to change the forecast location
Loading map...
207 PM MST Mon Nov 3 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database