Broadus, MT Weather & Growing Conditions
Live forecast is briefly unavailable; the local growing information below is from NOAA climate normals.
Growing snapshot for Broadus, MT
Last spring frost
May 13
First fall frost
Sep 25
Growing season
132 days
Hardiness zone
4b
Explore more for Broadus, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Powderville 8 Nne, Mt (8.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.