Will I be cold?
Will I be cold in Indianapolis in September?
Verdict
No — No, comfortable.
Lows stay near 56°F — you won't be reaching for the puffer.
Day vs. night
Day
77°F
Warm
Breathable fabrics; sunscreen matters more than a jacket.
Night
56°F
Cool
You'll want a warm layer after sunset — not a heavy coat.
Why
Indianapolis in September averages highs of 77°F, lows of 56°F, 8 rainy days.
You can pack for the daytime temps and not worry about the evening dip.
Nearby months
Packing pointers
Best shoes
Boots & insulated picks for Indianapolis in September →