Heavy Rainfall and Flooding Concerns in the Southwest; Coastal Low to Impact the East Coast

Deep tropical moisture will lead to widespread showers and thunderstorms capable of producing flash flooding through early next week over the Southwest and Four Corners. A coastal storm is expected to develop off the southeast U.S. coast tonight and is expected to strengthen and bring flooding, dangerous rip currents, gusty winds and heavy rain up much of the East Coast through early next week. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

Lat: 47.04917°NLon: 109.46639°WElev: 4167.0ft.

Clear

56°F

13°C

Humidity	61%
Wind Speed	ESE 9 MPH
Barometer	29.85 in (1010.84 mb)
Dewpoint	43°F (6°C)
Visibility	10.00 mi
Last update	10 Oct 07:54 PM MDT

More Information:

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

Extended Forecast for

Lewistown MT

Tonight
Low: 49 °F
Mostly Clear
Saturday
High: 70 °F
Slight Chance
Showers then
Showers
Saturday Night
Low: 30 °F
Showers
Sunday
High: 39 °F
Rain/Snow
then Chance
Rain/Snow
Sunday Night
Low: 23 °F
Snow Likely
Columbus Day
High: 41 °F
Chance Snow
then Partly
Sunny
Monday Night
Low: 22 °F
Mostly Cloudy
Tuesday
High: 49 °F
Mostly Sunny
Tuesday Night
Low: 27 °F
Partly Cloudy
then Slight
Chance
Rain/Snow

Detailed Forecast

Tonight

Mostly clear, with a low around 49. South southeast wind 9 to 13 mph, with gusts as high as 18 mph.

Saturday

Showers, mainly after 9am. High near 70. South southeast wind 7 to 9 mph becoming north northwest in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday Night

Showers and possibly a thunderstorm before 9pm, then rain, mainly after 9pm. Low around 30. West northwest wind 7 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Sunday

Rain and snow before 3pm, then a chance of snow. High near 39. Northwest wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Sunday Night

Snow likely, mainly before midnight. Mostly cloudy, with a low around 23. North northwest wind 6 to 9 mph becoming east after midnight. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Columbus Day

A 30 percent chance of snow before noon. Partly sunny, with a high near 41. East wind around 11 mph, with gusts as high as 21 mph. Little or no snow accumulation expected.

Monday Night

Mostly cloudy, with a low around 22. East wind 6 to 10 mph, with gusts as high as 20 mph.

Tuesday

Mostly sunny, with a high near 49. Light and variable wind becoming northeast around 5 mph in the afternoon.

Tuesday Night

A slight chance of rain and snow after midnight. Partly cloudy, with a low around 27.

Wednesday

Mostly sunny, with a high near 57.

Wednesday Night

A chance of rain and snow. Partly cloudy, with a low around 31.

Thursday

A chance of rain. Partly sunny, with a high near 54.