Cooler Nights and Rain Aid Fall Colors in Appalachia
Cooler Nights and Rain Aid Fall Colors in Appalachia
US · Published Sep 25, 2026
• The Southern Appalachians are beginning to see conditions more favorable for vibrant fall foliage after weeks of unseasonably warm weather.
• According to experts from East Tennessee State University (ETSU), recent rainfall and a shift to cooler nighttime temperatures—ranging from the 50s to even the 40s (10–15°C)—are helping to replenish groundwater and support the seasonal transition.

Impact & Risks

The delayed fall color season may affect tourism and outdoor activities in the Southern Appalachians, as visitors often plan trips around peak foliage. Drought-stressed trees could lead to uneven color displays, with some trees browning and shedding leaves prematurely. However, the recent rainfall and cooler temperatures are expected to mitigate some of the stress caused by the earlier heat and dryness. While individual trees may show signs of stress, the overall forest systems appear resilient, and experts anticipate a good display of fall colors in many areas.

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