Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from October 10, 06:00 PM MDT until October 12, 06:00 AM MDT

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

Lat: 46.71854°NLon: 113.29534°WElev: 3901.0ft.

33°F

1°C

Humidity	99%
Wind Speed	SE 0 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	11 Oct 10:30 AM MDT

More Information:

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

Extended Forecast for

Potomac MT

Winter Weather Advisory until October 12, 06:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory until October 12, 06:00am
NOW until 6:00am Mon
Winter Weather Advisory
Today
High: 42 °F
Chance Snow
then Chance
Rain/Snow
Tonight
Low: 21 °F
Rain/Snow
then Snow and
Patchy Fog
Columbus Day
High: 46 °F
Slight Chance
Snow and
Areas Fog
then Mostly
Sunny
Monday Night
Low: 20 °F
Patchy Fog
Tuesday
High: 52 °F
Areas Fog
then Sunny
Tuesday Night
Low: 22 °F
Mostly Clear
then Patchy
Fog
Wednesday
High: 56 °F
Areas Fog
then Sunny
Wednesday Night
Low: 26 °F
Partly Cloudy

Detailed Forecast

Today

A chance of snow before 3pm, then a chance of rain and snow. Cloudy, with a high near 42. East northeast wind around 5 mph. Chance of precipitation is 40%. Total daytime snow accumulation of less than a half inch possible.

Tonight

A chance of rain and snow before 9pm, then snow. Patchy fog before 4am, then patchy fog after 5am. Low around 21. Northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Columbus Day

A 20 percent chance of snow before 8am. Areas of fog before noon. Snow level rising to 5800 feet in the afternoon. Otherwise, partly sunny, with a high near 46. Calm wind.

Monday Night

Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 20. Calm wind.

Tuesday

Areas of fog before 11am. Otherwise, sunny, with a high near 52. Calm wind.

Tuesday Night

Patchy fog after 2am. Otherwise, mostly clear, with a low around 22.

Wednesday

Areas of fog before 11am. Otherwise, sunny, with a high near 56.

Wednesday Night

Partly cloudy, with a low around 26.

Thursday

Sunny, with a high near 59.