Smokies wildlife loop, underground at Mammoth Cave, soak it out in Hot Springs. Expect cold, damp winter conditions across all three stops: Smokies daytime highs in the mid-40s°F with overnight lows near 25–30°F at lower elevations, colder and possibly icy at Clingmans Dome and Newfound Gap. Mammoth Cave's interior stays a constant ~54°F year-round regardless of surface weather, but surface temps will be similarly cold with a chance of winter rain. Hot Springs is the mildest leg, with highs near 50–55°F — good weather for bathhouse soaking and easier valley hiking.
Smokies wildlife loop, underground at Mammoth Cave, soak it out in Hot Springs. Expect cold, damp winter conditions across all three stops: Smokies daytime highs in the mid-40s°F with overnight lows near 25–30°F at lower elevations, colder and possibly icy at Clingmans Dome and Newfound Gap. Mammoth Cave's interior stays a constant ~54°F year-round regardless of surface weather, but surface temps will be similarly cold with a chance of winter rain. Hot Springs is the mildest leg, with highs near 50–55°F — good weather for bathhouse soaking and easier valley hiking.