Mid-autumn · Weather & things to do
Indianapolis in October
Indianapolis cools off: highs slip to 65°F (18°C), from 78°F in September, with lows of 44°F (7°C) and about 3.7 in (93 mm) of rain.
At 85/100 for comfort (2nd of 12), it's one of the best months to visit.
- Avg high
- 65°F (18°C)
- Avg low
- 44°F (7°C)
- Rain
- 3.7 in (93 mm)
- Humidity
- 74%
- Cloud cover
- 55%
- Daylight
- ~10 h 55 min
- Comfort score
- 85/100 · Great
What October feels like
Days are mild at around 65°F (18°C): comfortable for walking all day, with a layer for the evening.
After dark, temperatures fall to about 44°F (7°C).
Some rain is likely, about 3.7 in (93 mm) in the month, so pack for a shower or two.
Plan around October
October is one of Indianapolis's best months on the climate data.
- Last of the best-scoring months: by November, the score drops to 63/100.
- Comfort slips from 89/100 in September to 85/100.
- October sits inside the May – Oct window our Indiana & Ohio City-Nature Loop recommends.
What to pack for October
- A warm layer for eveningslows near 44°F
- Packable rain jacket or umbrellaabout 3.7 in of rain
- Comfortable walking shoesmost picks involve some walking
What to do in Indianapolis in October
October is good outdoor weather here, so these picks lean toward the open air.
St. Elmo Steak House
Downtown steakhouse since 1902, famous for a fiery horseradish shrimp cocktail.
Indianapolis Motor Speedway Museum
Race cars and Indy 500 history at the speedway; grounds tours often run.
Newfields
Indianapolis Museum of Art plus 100+ acres of gardens and the Lilly House.
Sun King Brewery
Downtown taproom of one of Indiana's best-known craft breweries.
Indianapolis Cultural Trail
8-mile protected bike and walking path linking downtown's cultural districts.
Why now October scores 85/100 for comfort, good conditions for being outside.
Nearby in October
- Broad Ripple in October~7 mi · highs 65°F, 3.7 in rain · similar daytime temperatures, about as wet
- Downtown Cincinnati in October~99 mi · highs 68°F, 3.6 in rain · 2°C (3°F) warmer by day, about as wet
- Louisville in October~107 mi · highs 68°F, 4.3 in rain · 2°C (4°F) warmer by day, wetter
- Indiana Dunes in October~138 mi · highs 62°F, 3.7 in rain · 1°C (3°F) cooler by day, about as wet
These averages also cover Downtown Indianapolis.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Indianapolis in October: quick answers
Is October a good time to visit Indianapolis?
Yes. On the climate data it's one of the best months, scoring 85/100. Expect highs of 65°F (18°C) and 3.7 in (93 mm) of rain. October is inside the May – Oct window our Indiana & Ohio City-Nature Loop recommends.
How hot is Indianapolis in October?
Average highs are 65°F (18°C) and average lows 44°F (7°C), making it the 6th-warmest month by daytime highs.
Does it rain a lot in Indianapolis in October?
Some: about 3.7 in (93 mm) of rain falls across October on average, the 6th-wettest month of the year. The annual total is about 44.9 in (1141 mm).
What should I pack for Indianapolis in October?
Bring a warm layer for evenings (lows near 44°F), packable rain jacket or umbrella (about 3.7 in of rain) and comfortable walking shoes (most picks involve some walking).
More on Indianapolis
Routes in season in October
- Indiana & Ohio City-Nature Loop May – Oct
Planning Indianapolis in October?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.