Indianapolis (IN)
August
Weather in Indianapolis, Indiana for August 2026
Your guide to Indianapolis weather in August - trends and predictions
In general, the average temperature in Indianapolis at the beginning of August is 29.1 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 29.3 °F by the end of August.
Indianapolis in August brings notable rainfall, with an average of 18 rainy days and a total precipitation of 84.8 mm.
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Temperatures
Rain 🌧️
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13
Dry days
18
Rainy days
0
Snow days
29°/18°
Temperatures
16 km/h
Avg max wind
67 %
Avg humidity
Indianapolis Weather August
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Temperatures trend during August in Indianapolis
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August weather in Indianapolis day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Cloudy | 29° /19° | 1.3 mm | 6 | |
| Aug. 2 | Cloudy | 28° /17° | 1 mm | 6 | |
| Aug. 3 |  Overcast | 28° /17° | 0 mm | 6 | |
| Aug. 4 |  Partly cloudy | 31° /18° | 0 mm | 7 | |
| Aug. 5 |  Patchy rain possible | 30° /20° | 35.6 mm | 7 | |
| Aug. 6 | Patchy rain possible | 31° /20° | 0.9 mm | 7 | |
| Aug. 7 |  Moderate or heavy rain shower | 27° /18° | 6.4 mm | 6 | |
| Aug. 8 | Patchy rain possible | 29° /18° | 0.2 mm | 6 | |
| Aug. 9 | Moderate or heavy rain shower | 28° /17° | 4.5 mm | 6 | |
| Aug. 10 | Patchy rain possible | 27° /17° | 2 mm | 6 | |
| Aug. 11 | Patchy rain possible | 29° /17° | 0.3 mm | 7 | |
| Aug. 12 |  Heavy rain at times | 29° /18° | 3.2 mm | 6 | |
| Aug. 13 | Overcast | 29° /19° | 1 mm | 7 | |
| Aug. 14 | Moderate or heavy rain shower | 27° /18° | 12.8 mm | 6 | |
| Aug. 15 | Patchy rain possible | 26° /18° | 2 mm | 6 | |
| Aug. 16 | Overcast | 30° /18° | 1.3 mm | 7 | |
| Aug. 17 | Moderate or heavy rain shower | 29° /18° | 6 mm | 7 | |
| Aug. 18 | Overcast | 27° /17° | 0.6 mm | 6 | |
| Aug. 19 | Overcast | 28° /16° | 2.1 mm | 7 | |
| Aug. 20 | Cloudy | 28° /17° | 0 mm | 6 | |
| Aug. 21 | Patchy rain possible | 27° /17° | 0.1 mm | 6 | |
| Aug. 22 | Overcast | 29° /17° | 0 mm | 7 | |
| Aug. 23 | Overcast | 31° /17° | 1.5 mm | 7 | |
| Aug. 24 | Cloudy | 30° /20° | 0.1 mm | 6 | |
| Aug. 25 | Overcast | 30° /20° | 0.2 mm | 7 | |
| Aug. 26 | Patchy rain possible | 31° /16° | 4.2 mm | 7 | |
| Aug. 27 | Overcast | 29° /16° | 4.2 mm | 6 | |
| Aug. 28 |  Mist | 31° /15° | 2.8 mm | 7 | |
| Aug. 29 | Mist | 30° /15° | 0.8 mm | 7 | |
| Aug. 30 |  Sunny | 28° /16° | 0.6 mm | 7 | |
| Aug. 31 | Sunny | 26° /14° | 1.4 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.
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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 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Indianapolis during August?
Moderate rainfall is anticipated in Indianapolis during August, with a total of 84.8 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
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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