Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Hydrologic Outlook

Current conditions at

Lost Trail Pass (ITD87)

Lat: 45.69302°NLon: 113.94835°WElev: 7090.0ft.

light snow

28°F

-2°C

Humidity	100%
Wind Speed	SSW 2 MPH
Barometer	NA
Dewpoint	28°F (-2°C)
Visibility	1.24 mi
Last update	09 Dec 09:45 PM MST

More Information:

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

Extended Forecast for

2 Miles WNW Lost Trail Pass MT

Tonight
Low: 26 °F⇑
Heavy Snow
Wednesday
High: 35 °F
Rain/Snow
then Chance
Rain
Wednesday Night
Low: 31 °F
Chance
Rain/Snow
Thursday
High: 36 °F
Rain/Snow
Likely
Thursday Night
Low: 32 °F
Snow Likely
Friday
High: 34 °F
Chance Snow
then Slight
Chance Snow
Friday Night
Low: 26 °F
Slight Chance
Snow
Saturday
High: 31 °F
Slight Chance
Snow then
Mostly Sunny
Saturday Night
Low: 24 °F
Partly Cloudy

Detailed Forecast

Tonight

Snow. The snow could be heavy at times. Temperature rising to around 33 by 5am. Southwest wind 9 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 5 to 9 inches possible.

Wednesday

Rain and snow before 3pm, then a slight chance of rain between 3pm and 4pm. High near 35. Southwest wind 11 to 17 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Wednesday Night

A chance of rain before 8pm, then a chance of rain and snow. Mostly cloudy, with a low around 31. Southwest wind 15 to 18 mph, with gusts as high as 41 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

Thursday

Snow likely, possibly mixed with rain, becoming all snow after 2pm. Mostly cloudy, with a high near 36. West wind 13 to 18 mph, with gusts as high as 43 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Thursday Night

Snow likely. Cloudy, with a low around 32. West southwest wind 11 to 14 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Friday

A 50 percent chance of snow, mainly before 11am. Mostly cloudy, with a high near 34. New snow accumulation of less than a half inch possible.

Friday Night

A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 26.

Saturday

A slight chance of snow before 11am. Partly sunny, with a high near 31.

Saturday Night

Partly cloudy, with a low around 24.

Sunday

A slight chance of snow. Partly sunny, with a high near 31.

Sunday Night

A slight chance of snow. Mostly cloudy, with a low around 25.