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

29°F

-2°C

Humidity	96%
Wind Speed	SSW 5 MPH
Barometer	NA
Dewpoint	28°F (-2°C)
Visibility	NA
Wind Chill	24°F (-4°C)
Last update	11 Oct 06:45 AM MDT

More Information:

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

Extended Forecast for

7 Miles NW 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: 38 °F
Snow
Tonight
Low: 17 °F
Snow and
Patchy Fog
Columbus Day
High: 42 °F
Chance Snow
then Patchy
Fog
Monday Night
Low: 16 °F
Patchy Fog
Tuesday
High: 48 °F
Areas Fog
Tuesday Night
Low: 18 °F
Areas Fog
Wednesday
High: 53 °F
Areas Fog
then Sunny
Wednesday Night
Low: 22 °F
Mostly Clear

Detailed Forecast

Today

Snow, mainly before noon. High near 38. East wind 5 to 9 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

Tonight

Snow, mainly before 5am. Patchy fog after 1am. Low around 17. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Columbus Day

A 30 percent chance of snow, mainly before 7am. Patchy fog between noon and 2pm. Snow level rising to 5900 feet in the afternoon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 42. Light and variable wind. New snow accumulation of less than a half inch possible.

Monday Night

Patchy fog after 8pm. Otherwise, partly cloudy, with a low around 16. Calm wind.

Tuesday

Areas of fog before 1pm. Otherwise, sunny, with a high near 48. Calm wind.

Tuesday Night

Areas of fog after 9pm. Otherwise, mostly clear, with a low around 18.

Wednesday

Areas of fog before noon. Otherwise, sunny, with a high near 53.

Wednesday Night

Mostly clear, with a low around 22.

Thursday

Sunny, with a high near 55.