Cascade County, Montana
Local growing conditions for Cascade County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 15 ZIP codes in our data.
Hardiness zones in Cascade County
Cascade County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Cascade County for its live forecast, frost dates, and planting calendar:
Great Falls 59401
Fort Shaw 59483
Great Falls 59404
Stockett 59405
Riceville 59412
Black Eagle 59414
Hardy 59421
Fort Shaw 59443
Monarch 59463
Neihart 59465
Stockett 59472
Simms 59477
Riceville 59480
Ulm 59485
Vaughn 59487
More for Montana
- Agriculture in Montana
- Frost dates across Montana
- 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.