Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. 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 4 MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	NA
Wind Chill	25°F (-4°C)
Last update	11 Oct 12:30 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, 12:46am until October 12, 06:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory October 11, 12:46am until October 12, 06:00am
NOW until 6:00am Mon
Winter Weather Advisory
Overnight
Low: 29 °F
Rain/Snow
Sunday
High: 36 °F
Rain/Snow
Sunday Night
Low: 24 °F
Rain/Snow
then Snow
Columbus Day
High: 38 °F
Rain/Snow
Likely then
Cloudy
Monday Night
Low: 23 °F
Mostly Cloudy
Tuesday
High: 49 °F
Sunny
Tuesday Night
Low: 26 °F
Mostly Clear
Wednesday
High: 57 °F
Sunny

Detailed Forecast

Overnight

Rain and snow. Low around 29. North northwest wind around 7 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Sunday

Rain and snow. High near 36. East northeast wind 3 to 6 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Sunday Night

Snow, possibly mixed with rain, becoming all snow after 8pm. Low around 24. East northeast wind 3 to 5 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. Light west northwest wind. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Monday Night

Mostly cloudy, with a low around 23. Calm wind.

Tuesday

Sunny, with a high near 49. Calm wind.

Tuesday Night

Mostly clear, with a low around 26. Calm wind.

Wednesday

Sunny, with a high near 57. Light south wind.

Wednesday Night

Mostly clear, with a low around 30.

Thursday

Mostly sunny, with a high near 53.