Current conditions at
Lewistown, Lewistown Municipal Airport (KLWT)
Lat: 47.04917°NLon: 109.46639°WElev: 4167.0ft.
Clear
43°F
6°C
| Humidity | 35% |
| Wind Speed | SW 10 MPH |
| Barometer | 29.94 in (1013.89 mb) |
| Dewpoint | 17°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 37°F (3°C) |
| Last update | 28 Mar 05:20 AM MDT |
Extended Forecast for
Lewistown MT
Today

High: 61 °F
Mostly Cloudy
Tonight

Low: 33 °F
Gradual
ClearingSunday
High: 58 °F
Partly Sunny
then Slight
Chance RainSunday Night

Low: 32 °F
Rain Likely
Monday
High: 43 °F
Rain/Snow
Likely then
Chance Snow
and BreezyMonday Night
Low: 15 °F
Slight Chance
Snow then
Partly CloudyTuesday

High: 42 °F
Mostly Sunny
Tuesday Night

Low: 23 °F
Mostly Cloudy
Wednesday

High: 57 °F
Mostly Cloudy
Detailed Forecast
Today
Mostly cloudy, with a high near 61. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 33. Northwest wind 5 to 8 mph becoming light and variable after midnight.
Sunday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 58. Calm wind becoming south around 6 mph in the afternoon.
Sunday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 32. North northeast wind 5 to 8 mph becoming southeast after midnight. Chance of precipitation is 60%.
Monday
Rain likely before 9am, then rain and snow likely between 9am and noon, then a chance of snow after noon. Mostly cloudy, with a high near 43. Breezy, with a west northwest wind 5 to 10 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around 15. Northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 31 mph.
Tuesday
Mostly sunny, with a high near 42. Light and variable wind becoming south 5 to 7 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 23. Southeast wind around 9 mph, with gusts as high as 18 mph.
Wednesday
Mostly cloudy, with a high near 57.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 32.
Thursday
Rain and snow likely. Mostly cloudy, with a high near 50.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 23.
Friday
A chance of snow. Mostly cloudy, with a high near 41. Breezy.
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ABOUT THIS FORECAST
Point Forecast:
Lewistown MT
47.07°N 109.43°W (Elev. 3898 ft)
47.07°N 109.43°W (Elev. 3898 ft)
3:17 am MDT Mar 28, 2026
5am MDT Mar 28, 2026-6pm MDT Apr 3, 2026


