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 until October 12, 06:00 AM MDT

Current conditions at

Lewistown Divide MT-200 MP 90.3 (MTLEW)

Lat: 47.07579°NLon: 109.26247°WElev: 4723.0ft.

unknown precip

29°F

-2°C

Humidity	99%
Wind Speed	WNW 3 MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	NA
Last update	11 Oct 08:00 AM MDT

More Information:

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

Extended Forecast for

Lewistown MT

Winter Weather Advisory October 11, 08:28am until October 12, 06:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory October 11, 08:28am until October 12, 06:00am
NOW until 6:00am Mon
Winter Weather Advisory
Today
High: 36 °F
Rain/Snow
Tonight
Low: 24 °F
Rain/Snow
then Snow
Columbus Day
High: 38 °F
Rain/Snow
Likely then
Cloudy
Monday Night
Low: 23 °F
Decreasing
Clouds
Tuesday
High: 49 °F
Sunny
Tuesday Night
Low: 25 °F
Mostly Clear
Wednesday
High: 57 °F
Sunny
Wednesday Night
Low: 30 °F
Mostly Clear

Detailed Forecast

Today

Snow, possibly mixed with rain. High near 36. Light north northeast wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 100%. Total daytime snow accumulation of less than one inch possible.

Tonight

Snow, possibly mixed with rain, becoming all snow after 8pm. Low around 24. North wind around 8 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Columbus Day

Snow likely, possibly mixing with rain after 10am, then gradually ending. Cloudy, with a high near 38. West wind 3 to 7 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Monday Night

Cloudy, then gradually becoming partly cloudy, with a low around 23. Calm wind becoming southeast around 5 mph in the evening.

Tuesday

Sunny, with a high near 49. Calm wind.

Tuesday Night

Mostly clear, with a low around 25. Calm wind.

Wednesday

Sunny, with a high near 57. Calm wind.

Wednesday Night

Mostly clear, with a low around 30. Calm wind becoming southwest around 6 mph.

Thursday

Mostly sunny, with a high near 53.