What to Wear in Indianapolis
Indianapolis is not as cold as Chicago and often feels it anyway. The city sits on flat, open ground with little to break the wind, so the difference between the air temperature and what reaches skin is larger here than the forecast number suggests. Wind-blocking construction does more for an Indianapolis winter than extra insulation.
What to wear in Indianapolis today
Today's answer depends on today's conditions, so the specific outfit comes from the live reading for Indianapolis rather than from this page. Check what to wear right now, or read on for what stays true here whatever the date.
Three things move the answer in Indianapolis more than the forecast number does: the feels-like temperature rather than the air temperature, how long you will be outside, and whether you run warm or cold. Humid continental conditions make that gap wider here than the daily high suggests.
Check the wind before the temperature here. A 30°F day at 5 mph and a 30°F day at 20 mph are different garments, and only one of them is a coat problem — the other is a windproofing problem.
See also what to wear right now, do I need a jacket today and how to dress when the temperature swings.
Winter in Indianapolis
December through March. 25-40°F highs. Snow common. A dense, tightly woven or membrane outer layer matters more than loft: wind strips warm air out of an open knit, and adding another sweater under a porous coat does not fix that. Merino next to skin, because wool keeps most of its insulation when damp and cotton keeps almost none.
Spring in Indianapolis
April through May. 50-70°F. Severe weather season, and the practical wardrobe consequence is shoes you can move in and a shell that is genuinely waterproof rather than water-resistant.
Summer in Indianapolis
June through August. 75-90°F with humidity. Evaporation is what cools you, and it slows as the dew point rises — loose, open-weave fabrics that let air reach damp skin outperform anything tight, whatever the fibre.
Fall in Indianapolis
September through November. 50-70°F. Mornings run well under the afternoon, so the layer count matters more than the garments. Two light layers beat one medium one across a day this wide.
Local tips
Check the wind before the temperature here. A 30°F day at 5 mph and a 30°F day at 20 mph are different garments, and only one of them is a coat problem — the other is a windproofing problem.