Macon County, Illinois
Local growing conditions for Macon County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 16 ZIP codes in our data.
Hardiness zones in Macon County
Macon County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Macon County for its live forecast, frost dates, and planting calendar:
Maroa 61756
Dalton City 61925
Decatur 62501
Boody 62514
Decatur 62521
Harristown 62522
Decatur 62523
Decatur 62526
Elwin 62532
Forsyth 62535
Harristown 62537
Macon 62544
Mount Zion 62549
Niantic 62551
Oreana 62554
Warrensburg 62573
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.