Indianapolis weather in August
August in Indianapolis averages 84°F by day and 65°F at night, with 3.2 inches of precipitation. It is the 2nd-warmest and 8th-wettest month of the year here.
- Average high
- 84°F-1° vs July
- Average low
- 65°F0 nights below freezing
- Precipitation
- 3.2 in6 days with 0.1 in. or more
- Snow
- 0.0 in6 days at 90°F+
Is August a good time to visit Indianapolis?
Yes. August is one of the most comfortable months in Indianapolis by our rule (highs of 62 to 86°F, lows of 42°F or more and under 4.5 inches of precipitation). The most comfortable months overall are April and July to October.
Get outside in Indianapolis in August
August is made for being outside. Try Soldiers' and Sailors' Monument, Eagle Creek Park, Indianapolis Cultural Trail, Garfield Park Conservatory and Gardens. All things to do in Indianapolis.
On August 15 the sun rises at 6:56 am and sets at 8:40 pm, giving 13h 43m of daylight. Daylight all year.
What to pack for Indianapolis in August
- Summer clothes, with a light layer for air conditioning
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
August nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| Indianapolis | 84°F | 65°F | 3.2 in | |
| Fishers, IN | 14 mi | 83°F | 63°F | 3.9 in |
| Carmel, IN | 14 mi | 83°F | 63°F | 3.9 in |
| Noblesville, IN | 20 mi | 83°F | 63°F | 3.9 in |
| Bloomington, IN | 46 mi | 85°F | 64°F | 3.4 in |
| Cincinnati, OH | 95 mi | 85°F | 65°F | 3.4 in |
| Dayton, OH | 103 mi | 85°F | 64°F | 3.0 in |
Frequently asked questions
What is the weather like in Indianapolis in August?
In August, Indianapolis averages a high of 84°F and a low of 65°F, with 3.2 inches of precipitation (NOAA 1991-2020 normals).
Is August a good time to visit Indianapolis?
Yes. August is one of Indianapolis's most comfortable months by our rule: highs between 62°F and 86°F, lows of 42°F or more and modest rain.
Does it snow in Indianapolis in August?
Rarely. The August snowfall normal is under half an inch.
Before and after: Indianapolis in July and Indianapolis in September. All twelve months: Indianapolis weather by month.
NOAA NCEI 1991-2020 climate normals, station Indianapolis, IN, 9.3 miles from the city center.