Missoula County, Idaho
Local growing conditions for Missoula County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 14 ZIP codes in our data.
Hardiness zones in Missoula County
Missoula County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Missoula County for its live forecast, frost dates, and planting calendar:
Missoula 59802
Seeley Lake 59868
Missoula 59801
Missoula 59803
Missoula 59804
Wye 59808
Missoula 59812
Arlee 59821
Twin Creeks 59823
Condon 59826
Frenchtown 59834
Alberton 59846
Lolo 59847
Bonner-West Riverside 59851
More for Idaho
- Agriculture in Idaho
- Frost dates across Idaho
- USDA hardiness zones explained
- Planting calendar by ZIP code
County growing conditions are compiled from our ZIP-code database, USDA hardiness-zone data, and NOAA climate normals. Conditions vary within a county by elevation and local microclimate. Page updated Aug 4, 2026.