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

Ravalli County Airport (KHRF)

Lat: 46.25463°NLon: 114.1246°WElev: 3644.0ft.

Overcast

39°F

4°C

Humidity	80%
Wind Speed	S 4 MPH
Barometer	30.14 in (1020.66 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Wind Chill	36°F (2°C)
Last update	09 Dec 09:55 PM MST

More Information:

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

Extended Forecast for

8 Miles W Hamilton MT

Tonight
Low: 26 °F⇑
Heavy Snow
Wednesday
High: 37 °F
Rain/Snow and
Windy
Wednesday Night
Low: 35 °F
Rain/Snow
Likely and
Windy
Thursday
High: 37 °F
Rain/Snow and
Windy
Thursday Night
Low: 33 °F
Snow
Friday
High: 35 °F
Snow then
Chance
Rain/Snow
Friday Night
Low: 30 °F
Chance Snow
and Breezy
Saturday
High: 34 °F
Chance Snow
Saturday Night
Low: 29 °F
Partly Cloudy

Detailed Forecast

Tonight

Snow. The snow could be heavy at times. Temperature rising to around 33 by 5am. West southwest wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 4 to 8 inches possible.

Wednesday

Rain, possibly mixed with snow, mainly before 3pm. High near 37. Windy, with a west southwest wind 26 to 33 mph, with gusts as high as 65 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain and snow likely, mainly before 11pm. Mostly cloudy, with a low around 35. Windy, with a west southwest wind 30 to 33 mph, with gusts as high as 65 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Thursday

Rain and snow. High near 37. Windy, with a west southwest wind 30 to 32 mph, with gusts as high as 65 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Thursday Night

Snow. Low around 33. West wind 16 to 20 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Friday

Snow before 2pm, then a chance of rain and snow. High near 35. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Friday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 30. Breezy. New snow accumulation of less than a half inch possible.

Saturday

A chance of snow, mainly before 11am. Partly sunny, with a high near 34.

Saturday Night

Partly cloudy, with a low around 29.

Sunday

A chance of snow. Partly sunny, with a high near 35.

Sunday Night

A chance of snow. Mostly cloudy, with a low around 29.