Weather in Indianapolis in August
In an average August, Indianapolis sees a daily high around 83°F and a low around 66°F, based on 1980–2026 of local climate records.
| Average high | 83°F |
|---|---|
| Typical high range | 77°F to 90°F |
| Average low | 66°F |
| Typical low range | 58°F to 73°F |
| Average daily precipitation | 0.10 in |
August records
The most extreme August on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total August accumulation.
High
Highest
99°F
1983-08-19
Lowest
65°F
2004-08-12
Low
Highest
80°F
2023-08-25
Lowest
43°F
1986-08-29
Feels-like
Highest
138°F
1983-08-19
Lowest
39°F
1986-08-28
Humidity
Highest
23.1 g/m³
1995-08-18
Lowest
7.2 g/m³
1986-08-28
Wind
Highest
19 mph
2009-08-20
Lowest
3 mph
2015-08-08
Gust
Highest
46 mph
2009-08-20
Lowest
8 mph
2025-08-07
Precip
Wettest
6.40 in
1980
Driest
0.56 in
2008
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