Lewistown Airport (LWT) Weather 06/23/2026
Today
82
Sunny and Breezy
Tonight
45
Chance Showers and Breezy then Showers
Wednesday
65
Breezy. Mostly Sunny then Slight Chance T-storms
Wednesday Night
41
Slight Chance T-storms then Partly Cloudy
Thursday
67
Mostly Sunny then Slight Chance T-storms
Thursday Night
42
Partly Cloudy
Juneteenth
75
Mostly Sunny
Friday Night
47
Partly Cloudy
Saturday
75
Partly Sunny then Slight Chance T-storms
Saturday Night
46
Slight Chance T-storms then Chance Showers
Sunday
69
Partly Sunny then Chance Showers
Sunday Night
42
Chance Showers
Monday
67
Chance Showers
Weekly Forecast
Today
Sunny, with a high near 82. Breezy, with a west northwest wind 17 to 22 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 43 mph.
Tonight
Showers and thunderstorms before 2am, then a chance of showers. Low around 45. Breezy, with a west northwest wind 24 to 29 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 90%.
Wednesday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 65. Breezy, with a west northwest wind 18 to 23 mph, with gusts as high as 34 mph.
Wednesday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 41. North northwest wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. Light and variable wind becoming northwest 5 to 7 mph in the morning.
Thursday Night
Partly cloudy, with a low around 42. North wind around 6 mph becoming southeast after midnight.
Juneteenth
Mostly sunny, with a high near 75. East wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 47. East southeast wind 8 to 13 mph, with gusts as high as 22 mph.
Saturday
A slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 75.
Saturday Night
A slight chance of showers and thunderstorms, then a chance of showers after midnight. Mostly cloudy, with a low around 46.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 69.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 42.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 67.