Severe Weather and Heavy Rain for the Southern U.S.

A potent storm system will roll across the Southern tier of the U.S. over the next two days. As a result, severe thunderstorms with large hail, damaging winds and a few tornadoes are possible from the southern Plains and Lower Mississippi Valley into the South and Southeast. Also, heavy rain from these thunderstorms may cause some flood concerns, especially in the Lower Mississippi Valley. Read More >

Hazardous Weather Conditions

Special Weather Statement

En Español

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

Lat: 47.04917°NLon: 109.46639°WElev: 4167ft.

light snow,mist

25°F

-4°C

Humidity	85%
Wind Speed	NNW 4 MPH
Barometer	29.98 in (1015.24 mb)
Dewpoint	21°F (-6°C)
Visibility	5.00 mi
Wind Chill	20°F (-7°C)
Last update	23 Apr 06:20 AM MDT

More Information:

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

Extended Forecast for

Lewistown MT

Today

Wintry Mix
Likely then
Slight Chance
Snow
High: 37 °F
Tonight

Slight Chance
Rain/Snow and
Patchy Fog
Low: 23 °F
Saturday

Mostly Cloudy
then Rain
Likely
High: 48 °F
Saturday
Night

Rain/Snow
then Snow
Low: 32 °F
Sunday

Chance
Rain/Snow
then Chance
Rain
High: 50 °F
Sunday
Night

Rain/Snow
Likely then
Snow Likely
Low: 30 °F
Monday

Rain/Snow
Likely then
Chance Rain
High: 48 °F
Monday
Night

Partly Cloudy
Low: 29 °F
Tuesday

Sunny
High: 55 °F

Detailed Forecast

Today

Snow likely, possibly mixed with freezing drizzle before 8am, then a chance of snow. Cloudy, with a high near 37. North northeast wind 5 to 9 mph becoming south southwest in the afternoon. Chance of precipitation is 60%. Little or no ice accumulation expected. Total daytime snow accumulation of less than a half inch possible.

Tonight

A slight chance of rain and snow before 8pm, then a slight chance of snow between 8pm and 2am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 23. Southeast wind 5 to 7 mph. Chance of precipitation is 20%.

Saturday

Rain likely, mainly after 5pm. Mostly cloudy, with a high near 48. East southeast wind 6 to 9 mph. Chance of precipitation is 70%.

Saturday Night

Rain before 9pm, then rain and snow between 9pm and midnight, then snow after midnight. Low around 32. East southeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Sunday

A chance of snow before 9am, then a chance of rain. Mostly cloudy, with a high near 50. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.

Sunday Night

Rain likely before 9pm, then rain and snow likely between 9pm and midnight, then snow likely after midnight. Cloudy, with a low around 30. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Monday

Snow likely before 9am, then rain and snow likely between 9am and noon, then a chance of rain after noon. Mostly cloudy, with a high near 48. Northwest wind 3 to 7 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Monday Night

Partly cloudy, with a low around 29. West wind around 6 mph becoming south southwest in the evening.

Tuesday

Sunny, with a high near 55.

Tuesday Night

Partly cloudy, with a low around 32.

Wednesday

Mostly sunny, with a high near 59.

Wednesday Night

Partly cloudy, with a low around 38.

Thursday

Partly sunny, with a high near 64.