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Weather in Indianapolis for August 2025

Your guide to Indianapolis weather in August - trends and predictions
  • In general, the average temperature in Indianapolis at the beginning of August is 30 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 31.9 °F by the end of August.

  • The climate of Indianapolis in August is notably wet, with an average of 15 rainy days.

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Average dry days
16
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/17°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
70 %
Avg humidity

Indianapolis in August average weather

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Temperatures trend during August in Indianapolis

See the weather trend as well as the moving average line

August weather day by day

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Date Weather Temperatures Rain UV More
Aug. 1 Cloudy
Cloudy
32° /19° 2 mm 7
Aug. 2 Cloudy
Cloudy
29° /19° 1.5 mm 7
Aug. 3 Overcast
Overcast
29° /19° 0 mm 7
Aug. 4 Overcast
Overcast
32° /19° 0 mm 8
Aug. 5 Patchy rain possible
Patchy rain possible
32° /21° 5.3 mm 8
Aug. 6 Patchy rain possible
Patchy rain possible
31° /20° 1.3 mm 7
Aug. 7 Moderate or heavy rain shower
Moderate or heavy rain shower
25° /19° 9.6 mm 6
Aug. 8 Patchy rain possible
Patchy rain possible
29° /16° 0.2 mm 7
Aug. 9 Moderate or heavy rain shower
Moderate or heavy rain shower
26° /16° 6.7 mm 6
Aug. 10 Patchy rain possible
Patchy rain possible
26° /15° 3 mm 6
Aug. 11 Patchy rain possible
Patchy rain possible
28° /15° 0.4 mm 7
Aug. 12 Heavy rain at times
Heavy rain at times
27° /17° 3.7 mm 6
Aug. 13 Overcast
Overcast
29° /17° 0 mm 7
Aug. 14 Moderate or heavy rain shower
Moderate or heavy rain shower
26° /18° 19.3 mm 6
Aug. 15 Patchy rain possible
Patchy rain possible
24° /17° 3 mm 6
Aug. 16 Overcast
Overcast
28° /16° 2 mm 7
Aug. 17 Moderate or heavy rain shower
Moderate or heavy rain shower
29° /17° 2 mm 7
Aug. 18 Overcast
Overcast
25° /15° 0.8 mm 6
Aug. 19 Overcast
Overcast
27° /14° 0 mm 7
Aug. 20 Cloudy
Cloudy
28° /16° 0 mm 7
Aug. 21 Patchy rain possible
Patchy rain possible
28° /17° 0.2 mm 7
Aug. 22 Overcast
Overcast
29° /17° 0 mm 7
Aug. 23 Cloudy
Cloudy
33° /17° 2.3 mm 7
Aug. 24 Cloudy
Cloudy
33° /21° 0.1 mm 7
Aug. 25 Thundery outbreaks possible
Thundery outbreaks possible
35° /23° 0.3 mm 8
Aug. 26 Patchy rain possible
Patchy rain possible
34° /21° 6.3 mm 8
Aug. 27 Overcast
Overcast
32° /18° 6.3 mm 7
Aug. 28 Mist
Mist
33° /16° 4.2 mm 7
Aug. 29 Mist
Mist
33° /16° 1.2 mm 7
Aug. 30 Sunny
Sunny
30° /17° 0.9 mm 8
Aug. 31 Sunny
Sunny
26° /15° 2.2 mm 6
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Important Notice
Our weather forecast for Indianapolis in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Indianapolis forecast closer to your planned date for the most up-to-date weather information.

Indianapolis in August - FAQ

What are the expected maximum and minimum temperatures in Indianapolis during August?
During August, expect a variety of temperatures with highs around 29° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Indianapolis during August?
Significant rainfall exceeding 120.5 mm is expected in Indianapolis during August, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Indianapolis during August?
The average wind speed in Indianapolis during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Indianapolis

Explore the daily rainfall trends and prepare for Indianapoliss August weather 💧

UV exposure in Indianapolis during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

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Location coordinates Where is Indianapolis?

Get accurate weather forecasts for Indianapolis, located at latitude 39.768 and longitude -86.158. Stay updated with localized weather information tailored for Indianapolis.

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