Great Smoky Mountains National Park Weather National Park Weather by 4 Day Forecast More Weather from Intellicast . Climate varies tremendously within the Park by season and elevation.
Conditions often change without notice.
Be prepared for almost anything at anytime. Always check ahead of time on weather conditions at time of travel. Elevations in the park range from 800 feet to 6,643 feet and topography affects local weather. Temperatures are 10 to 20 degrees cooler on the mountaintops. Annual precipitation averages 65 inches in the lowlands to 88 inches in the high country.