Pack or skip
Packable down jacket for Knoxville in September
Verdict
Optional
Handy for evening chills; skip if you're tight on space.
Why
Knoxville in September averages highs of 82°F, lows of 61°F, 8 rainy days.
That climate makes a packable down jacket a judgment call. Handy for evening chills; skip if you're tight on space.