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Lewistown, Montana, United States has four distinct seasons, each with its own weather patterns. In the winter, temperatures range from an average low of 9 degrees Fahrenheit in January to an average high of 58 degrees Fahrenheit in April. Snowfall can be expected during this time of year, with an average of 28 inches of snowfall each season. Spring is a mild season with temperatures ranging from an average low of 32 degrees Fahrenheit in May to an average high of 84 degrees Fahrenheit in July. While the occasional shower can be expected, rain is not abundant. Summer brings hot temperatures, with an average low of 48 degrees Fahrenheit in August to an average high of 92 degrees Fahrenheit in September. The area also receives frequent thunderstorms during this season. Fall is a pleasant season, with temperatures ranging from an average low of 27 degrees Fahrenheit in October to an average high of 67 degrees Fahrenheit in December. Rainfall is more frequent during this time of year, with an average of 11 inches of precipitation.
As of 2020, the city population is 5923.
This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Lewistown, Montana.