Weather in Roundup, Montana
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 08:50 PM ET · Refreshes every hour
83°F
Partly cloudy
Feels like 74°F
12%
Humidity
8 mph
Wind Speed
About Weather in Roundup
Roundup is located in Montana (coordinates: 46.448335°N, 108.539687°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.