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.

Mostly Cloudy

37°F

3°C

Humidity	80%
Wind Speed	S 5 MPH
Barometer	30.16 in (1021.34 mb)
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Wind Chill	33°F (1°C)
Last update	09 Dec 07:35 PM MST

More Information:

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

Extended Forecast for

Hamilton MT

Tonight
Low: 33 °F
Rain then
Rain/Snow
Wednesday
High: 49 °F
Rain
Wednesday Night
Low: 43 °F
Chance Rain
Thursday
High: 47 °F
Rain
Thursday Night
Low: 41 °F
Rain
Friday
High: 48 °F
Rain Likely
then Chance
Rain
Friday Night
Low: 35 °F
Chance Rain
Saturday
High: 47 °F
Slight Chance
Rain then
Partly Sunny
Saturday Night
Low: 33 °F
Partly Cloudy

Detailed Forecast

Tonight

Rain before 2am, then rain, possibly mixed with snow. Low around 33. South southeast wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday

Rain, mainly before 3pm. High near 49. South southeast wind 16 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 43. South wind around 18 mph, with gusts as high as 31 mph. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday

Rain. High near 47. Southwest wind 10 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain. Low around 41. Southwest wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Rain likely, mainly before 11am. Mostly cloudy, with a high near 48. Chance of precipitation is 60%.

Friday Night

A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 35.

Saturday

A slight chance of rain before 11am. Partly sunny, with a high near 47.

Saturday Night

Partly cloudy, with a low around 33.

Sunday

A slight chance of rain. Partly sunny, with a high near 47.

Sunday Night

A slight chance of rain. Mostly cloudy, with a low around 33.