Hazardous Weather Conditions
Current conditions at
Lewistown, Lewistown Municipal Airport (KLWT)
Lat: 47.04917°NLon: 109.46639°WElev: 4167.0ft.
Mostly Cloudy
N/A
| Humidity | 36% |
| Wind Speed | WNW 16 MPH |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | 10.00 mi |
| Last update | 07 May 12:54 PM MDT |
Extended Forecast for
Lewistown MT
Severe T-storm Watch until May 13, 09:00pm
High Wind Warning May 14, 03:00am until May 15, 12:00am
NOW until 9:00pm Wed

Severe T-storm Watch
This Afternoon

High: 90 °F
Chance
ShowersTonight
Low: 41 °F
Breezy.
Severe
Thunderstorms
then Partly
CloudyThursday

High: 64 °F
Sunny and
WindyThursday Night
Low: 40 °F
Partly Cloudy
and Breezy
then Mostly
CloudyFriday

High: 62 °F
Sunny and
BreezyFriday Night
Low: 36 °F
Mostly Clear
and Breezy
then Partly
CloudySaturday
High: 61 °F
Partly Sunny
then Chance
ShowersSaturday Night
Low: 33 °F
Rain Likely
then Chance
Rain/Snow
Detailed Forecast
This Afternoon
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. South wind around 16 mph becoming west. Winds could gust as high as 29 mph.
Tonight
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and midnight. Some of the storms could be severe. Low around 41. Breezy, with a west southwest wind 13 to 18 mph increasing to 19 to 24 mph in the evening. Winds could gust as high as 37 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Sunny, with a high near 64. Windy, with a west wind 24 to 29 mph increasing to 33 to 38 mph in the morning. Winds could gust as high as 48 mph.
Thursday Night
Increasing clouds, with a low around 40. Breezy, with a west wind 23 to 28 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 39 mph.
Friday
Sunny, with a high near 62. Breezy, with a west wind 18 to 23 mph increasing to 24 to 29 mph in the morning. Winds could gust as high as 39 mph.
Friday Night
Partly cloudy, with a low around 36. Breezy, with a west northwest wind 17 to 22 mph becoming light and variable. Winds could gust as high as 31 mph.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 61. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.
Saturday Night
Rain likely before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday
A chance of rain and snow before noon, then rain showers likely. Some thunder is also possible. Mostly cloudy, with a high near 44.
Sunday Night
A chance of rain before midnight, then a chance of snow. Mostly cloudy, with a low around 29.
Monday
A chance of rain and snow. Partly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 58.
Tuesday Night
A slight chance of rain and thunderstorms. Mostly cloudy, with a low around 36.
Wednesday
A chance of rain and thunderstorms. Partly sunny, with a high near 58.
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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)
4:42 pm MDT May 13, 2026
4pm MDT May 13, 2026-6pm MDT May 20, 2026



