Strong Coastal Storm to Impact Mid-Atlantic to New England through Thursday

A rapidly intensifying storm developing across the Mid-Atlantic will move quickly into New England by Thursday. The storm will produce heavy rainfall and localized flooding across these areas. Additionally, strong winds may cause some tree damage and power outages through Thursday. Elsewhere, elevated to critical fire weather conditions are forecast across the Great Basin and Central Rockies. Read More >

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Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Fair

44°F

7°C

Humidity	62%
Wind Speed	E 7 MPH
Barometer	30.03 in (1018.8 mb)
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Wind Chill	40°F (4°C)
Last update	15 Oct 7:54 pm MDT

More Information:

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

Extended Forecast for

Lewistown MT

Tonight

Mostly Cloudy
Low: 37 °F
Wednesday

Decreasing
Clouds
High: 66 °F
Wednesday
Night

Partly Cloudy
Low: 41 °F
Thursday

Mostly Cloudy
High: 61 °F
Thursday
Night

Chance Rain
Low: 35 °F
Friday

Mostly Sunny
then Mostly
Sunny and
Breezy
High: 51 °F
Friday
Night

Mostly Clear
Low: 31 °F
Saturday

Mostly Sunny
then Chance
Rain
High: 49 °F
Saturday
Night

Chance Rain
then Chance
Rain/Snow
Low: 30 °F

Detailed Forecast

Tonight

Mostly cloudy, with a low around 37. South southwest wind 8 to 10 mph.

Wednesday

Mostly cloudy, then gradually becoming sunny, with a high near 66. Southwest wind 9 to 13 mph.

Wednesday Night

Partly cloudy, with a low around 41. South wind 7 to 10 mph.

Thursday

Mostly cloudy, with a high near 61. South southeast wind 6 to 11 mph becoming west northwest in the afternoon.

Thursday Night

A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 35. West southwest wind 8 to 14 mph.

Friday

Mostly sunny, with a high near 51. Breezy.

Friday Night

Mostly clear, with a low around 31.

Saturday

A chance of rain after noon. Mostly sunny, with a high near 49.

Saturday Night

A chance of rain before 3am, then a chance of snow. Mostly cloudy, with a low around 30.

Sunday

A chance of rain and snow before 9am, then a chance of snow between 9am and noon, then a chance of rain and snow after noon. Mostly cloudy, with a high near 42.

Sunday Night

A slight chance of rain and snow. Mostly cloudy, with a low around 26.

Monday

A chance of rain and snow. Mostly sunny, with a high near 44.

Monday Night

A chance of rain and snow. Mostly cloudy, with a low around 29.

Tuesday

A chance of rain. Partly sunny, with a high near 51.