Nashua is a town in Valley County, Montana, United States. The population was 301 at the 2020 census.
The town was established as a station on the St. Paul, Minneapolis & Manitoba Railway in 1888. Nashua had a brief economic boom during the building of Fort Peck Dam in the 1930s.
Geography
thumb|left|Panorama of Nashua in 2013
According to the United States Census Bureau, the town has a total area of , all land.
Climate
According to the Köppen Climate Classification system, Nashua has a semi-arid climate, abbreviated "BSk" on climate maps.