Moderate to Heavy Lake Effect Snow; Unsettled Weather for the West

Moderate to heavy lake-effect snow and gusty winds will continue Friday downwind of the Lake Ontario. The combination of heavy snow and gusty winds will bring hazardous driving conditions. A couple of Pacific Storms may bring the potential for significant low elevation rain and higher elevation snow from central California to the Pacific Northwest through the weekend. Read More >

Hazardous Weather Conditions

Air Stagnation Advisory until December 13, 02:00 PM MST

Current conditions at

Ontario Municipal Airport (KONO)

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

light snow,mist

33°F

1°C

Humidity	91%
Wind Speed	W 6 MPH
Barometer	29.87 in (1011.51 mb)
Dewpoint	31°F (-1°C)
Visibility	3.00 mi
Wind Chill	27°F (-3°C)
Last update	12 Dec 07:53 PM MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Ontario Municipal OR

Air Stagnation Advisory December 12, 08:07pm until December 13, 02:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Air Stagnation Advisory December 12, 08:07pm until December 13, 02:00pm
NOW until 2:00pm Fri
Air Stagnation Advisory
Tonight
Low: 29 °F
Chance
Rain/Snow
Friday
High: 34 °F
Slight Chance
Snow then
Mostly Cloudy
Friday Night
Low: 34 °F⇑
Rain
Saturday
High: 43 °F
Rain
Saturday Night
Low: 32 °F
Rain then
Chance Rain
Sunday
High: 42 °F
Mostly Sunny
Sunday Night
Low: 25 °F
Mostly Cloudy
Monday
High: 37 °F
Chance Snow

Detailed Forecast

Tonight

A chance of snow before 11pm, then a chance of rain and snow. Cloudy, with a low around 29. Calm wind. Chance of precipitation is 40%. Little or no snow accumulation expected.

Friday

A 20 percent chance of snow before 11am. Mostly cloudy, with a high near 34. Light and variable wind.

Friday Night

Rain, mainly after 11pm. Temperature rising to around 40 by 5am. Light and variable wind becoming southeast 8 to 13 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Saturday

Rain. High near 43. Southeast wind 14 to 16 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Saturday Night

Rain, mainly before 11pm. Low around 32. South southeast wind 8 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday

Mostly sunny, with a high near 42.

Sunday Night

Mostly cloudy, with a low around 25.

Monday

A 30 percent chance of snow after 11am. Mostly cloudy, with a high near 37.

Monday Night

A chance of rain and snow. Cloudy, with a low around 28. Chance of precipitation is 50%.

Tuesday

A slight chance of rain and snow before 11am. Mostly cloudy, with a high near 37. Chance of precipitation is 20%.

Tuesday Night

Mostly cloudy, with a low around 25.