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 Storm Warning in effect from October 10, 06:00 PM MDT until October 12, 06:00 AM MDT

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

unknown precip

30°F

-1°C

Humidity	85%
Wind Speed	SSE 3 MPH
Barometer	NA
Dewpoint	26°F (-3°C)
Visibility	NA
Last update	11 Oct 07:30 AM MDT

More Information:

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

Extended Forecast for

11 Miles SW Garrison MT

Winter Storm Warning until October 12, 06:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning until October 12, 06:00am
NOW until 6:00am Mon
Winter Storm Warning
Today
High: 26 °F
Heavy Snow
Tonight
Low: 23 °F
Heavy Snow
Columbus Day
High: 32 °F
Slight Chance
Snow then
Patchy Fog
Monday Night
Low: 25 °F
Partly Cloudy
Tuesday
High: 36 °F
Sunny
Tuesday Night
Low: 27 °F
Mostly Clear
Wednesday
High: 41 °F
Sunny
Wednesday Night
Low: 31 °F
Mostly Clear

Detailed Forecast

Today

Snow likely, mainly after 4pm. The snow could be heavy at times. Cloudy, with a high near 26. East northeast wind around 8 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 1 to 3 inches possible.

Tonight

Snow, mainly before 5am. The snow could be heavy at times. Low around 23. East wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Columbus Day

A 20 percent chance of snow before 8am. Patchy fog between 3pm and 4pm. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 32. East wind around 5 mph becoming calm in the morning.

Monday Night

Partly cloudy, with a low around 25. Calm wind becoming southwest around 5 mph after midnight.

Tuesday

Sunny, with a high near 36. West southwest wind around 6 mph becoming calm in the afternoon.

Tuesday Night

Mostly clear, with a low around 27.

Wednesday

Sunny, with a high near 41.

Wednesday Night

Mostly clear, with a low around 31.

Thursday

Sunny, with a high near 42.