Lewistown (MT) Weather and Climate: A Comprehensive Guide
The climate in Lewistown is marked by big temperature swings throughout the year.
Temperatures range from warm during the warmest months
to very cold in the cooler months.
Lewistown has a dry climate with relatively low precipitation levels.
Let’s explore the climate details in depth to provide you with a complete overview.
Average maximum day and minimum night temperature
In Lewistown, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 28°C in July to a very cold 1°C in December.
Nighttime temperatures can drop, with average lows reaching -11°C in December. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Lewistown's climate is marked by below-average rain/snowfall, accumulating 498 mm of precipitation yearly. The seasons in Lewistown, bring significant changes in precipitation. The wettest month, May, receives moderate rainfall, with an average of 100 mm of precipitation. This rainfall is distributed across 18 rainy days. In contrast, the driest month, February, experiences much less snowfall, totaling 16 mm over 10 snowy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Lewistown Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
broken clouds and no rain partly cloudy and chance of slight rain overcast and sleetForecast for Lewistown (MT)
5 m/s
8 m/s
7 m/s
The best time of year to visit Lewistown in the United States of America
During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Yes, the months of January, February and December are very dry.
The coldest season / winter is in the following months: January, February and December.
July has an average maximum temperature of 28°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 1°C.
May tops the wettest month list with 100 mm of rainfall.
February is the driest month with 16 mm of precipitation.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
