Weather in Indianapolis: August
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Average day temperature: | 81.7°F |
| Average night temperature: | 68.1°F | |
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Number of sunny days: | 13 days |
| Day length: | 13.1 - 14.2 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 0.9 in. | |
| more information | ||
14 days
forecast
forecast
| Indianapolis |
weather in
September
September
| Indianapolis |
Air temperature in August, °F
Show year:
2025
2024
2023
The highest day temperature during August of 2025 was 92°F. At the same time the lowest night temperature was 54°F. Daily and nightly averages during August were 81.9°F and 66.2°F.
Sunny, partly cloudy and cloudy days
Mostly all days in August are sunny but cloudy days are also possible.
Precipitation total in August, in.
Precipitation total value in Indianapolis in August is 0.9 in. Other months of the year show relatively similar values.
Wind speed in August, mph
The average wind speed value in August is 5.9 mph It makes August one of the least windy months of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 8.7.
Best time for vacation in Indianapolis
Indianapolis on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Indianapolis
Local time: 09:03
August 13, thursday
1200
75°F
W
3 mph
3 mph
1500
84°F
NW
7 mph
7 mph
1800
73°F
W
4 mph
4 mph
2100
70°F
W
5 mph
5 mph
August 14, friday
0000
68°F
NW
6 mph
6 mph
0300
68°F
W
4 mph
4 mph
0600
70°F
NW
8 mph
8 mph
0900
70°F
S
6 mph
6 mph
