Weather in Indianapolis in September
In an average September, Indianapolis sees a daily high around 78°F and a low around 58°F, based on 1980–2026 of local climate records.
| Average high | 78°F |
|---|---|
| Typical high range | 68°F to 87°F |
| Average low | 58°F |
| Typical low range | 48°F to 68°F |
| Average daily precipitation | 0.10 in |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
98°F
2011-09-01
Lowest
54°F
2001-09-25
Low
Highest
76°F
2010-09-24
Lowest
31°F
1995-09-23
Feels-like
Highest
126°F
1991-09-13
Lowest
23°F
1995-09-23
Humidity
Highest
21.3 g/m³
1990-09-06
Lowest
4.5 g/m³
1995-09-23
Wind
Highest
28 mph
2024-09-27
Lowest
3 mph
2022-09-15
Gust
Highest
56 mph
1996-09-27
Lowest
7 mph
2016-09-19
Precip
Wettest
9.46 in
2003
Driest
0.49 in
2004
See Indianapolis's live weather grade →
Visiting Indianapolis in September? See how its comfort stacks up against where you live.
Compare Indianapolis with your city →