Forest County, Pennsylvania
Local growing conditions for Forest County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 7 ZIP codes in our data.
Hardiness zones in Forest County
Forest County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Forest County for its live forecast, frost dates, and planting calendar:
Marienville 15828
Vowinckel 16217
Marienville 16239
Tionesta 16321
Tidioute 16322
Tionesta 16353
Tionesta 16370
More for Pennsylvania
- Agriculture in Pennsylvania
- Frost dates across Pennsylvania
- USDA hardiness zones explained
- Planting calendar by ZIP code
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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.