url:
Lewistown, Montana Weather Forecast
Lewistown, Montana Weather
your sport, your way
Air Sports Net on FacebookAir Sports Net on Google +Air Sports Net on TwitterReceive RSS UpdatesReceive Email Updates

Click for High Wind Warning for Lewistown, Montana
Change location by the zip code or city,state: or search for other weather forecast locations in Montana by name.
Weather Forecast for Lewistown, Montana : Fergus County
Issued: 4:03 am MST Dec 17, 2025 Latitude: 47.0624732 Longitude: -109.428238 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Cloudy on Overnight 60% chance of rain & snow on Wednesday Increasing Clouds on Thursday 50% chance of rain & snow on Friday 10% chance of snow on Saturday Mostly Sunny on Sunday 10% chance of rain & snow on Monday Partly Sunny on Tuesday
Low: 44°F High: 48 °F High: 42°F High: 47°F High: 37°F High: 41°F High: 43°F High: 42°F
Low: 18°F Low: 31°F Low: 19°F Low: 22°F Low: 25°F Low: 23°F  
Mostly Cloudy Rain & Snow Increasing Clouds Rain & Snow Snow Mostly Sunny Rain & Snow Partly Sunny
-
Current Conditions at
LEWISTOWN - (KLWT)
50°
Feels like 42°F
Clear
as of 4:54 AM MST
Rel. Humidity: 31%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.37 in.
Flight Rule: VFR
Wind Data
24 MPH
Gust: 33 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
GREAT FALLS - (KGTF)
52°
Clear
as of 4:53 AM MST
Rel. Humidity: 40%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.22 in.
Flight Rule: VFR
Wind Data
32 MPH
Gust: 44 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
BILLINGS - (KBIL)
46°
Partly Cloudy
as of 4:53 AM MST
Rel. Humidity: 42%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.46 in.
Flight Rule: VFR
Wind Data
8 MPH
250° West
Cloud Level(s): Scattered at 21000ft
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a steady temperature around 44. South southwest wind around 17 mph, with gusts as high as 29 mph.
60% chance of rain & snow Wednesday Wednesday... Rain likely, possibly mixing with snow after 11am, then gradually ending. Patchy blowing dust after 11am. Partly sunny, with a temperature rising to near 48 by 9am, then falling to around 33 during the remainder of the day. Windy, with a west wind 20 to 25 mph increasing to 34 to 39 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Dust on Wednesday Night Wednesday Night... Patchy blowing dust before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 18. Windy, with a west northwest wind 27 to 37 mph decreasing to 13 to 23 mph. Winds could gust as high as 55 mph.
Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 42. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
20% chance of snow Thursday Night Thursday Night... A slight chance of snow, mixing with rain after 8pm, then gradually ending. Mostly cloudy, with a low around 31. South southwest wind 13 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
50% chance of rain & snow Friday Friday... A chance of rain and snow before 11am, then a chance of snow. Mostly cloudy, with a high near 47. West northwest wind 15 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
50% chance of snow Friday Night Friday Night... A 50 percent chance of snow. Mostly cloudy, with a low around 19. West northwest wind 8 to 10 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.
10% chance of snow Saturday Saturday... A slight chance of snow before 11am. Mostly sunny, with a high near 37. West wind 8 to 14 mph, with gusts as high as 24 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 22.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 41.
10% chance of rain & snow Sunday Night Sunday Night... A slight chance of rain and snow. Mostly cloudy, with a low around 25.
10% chance of rain & snow Monday Monday... A slight chance of rain and snow. Mostly cloudy, with a high near 43.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 23.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 42.
Current Radar Image


Sun Almanac for Lewistown, Montana
Sunrise: 07:59 AM
Sunset: 4:29 PM
Civil Sunrise:07:23 AM
Civil Sunset: 5:05 PM
Nautical Sunrise: 06:44 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 06:07 AM
Astro Sunset: 6:21 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.