McDonough County, Illinois
Local growing conditions for McDonough County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 10 ZIP codes in our data.
Hardiness zones in McDonough County
McDonough County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in McDonough County for its live forecast, frost dates, and planting calendar:
Adair 61411
Bardolph 61416
Blandinsville 61420
Bushnell 61422
Good Hope 61438
Industry 61440
Macomb 61455
Prairie City 61470
Sciota 61475
Colchester 62326
More for Illinois
- Agriculture in Illinois
- Frost dates across Illinois
- 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.