Indianapolis (IN)
August
Weather in Indianapolis, Indiana for August 2026
Your guide to Indianapolis weather in August - trends and predictions
The forecast for the first days of August 2026 in Indianapolis predicts a temperature of 27.1 °C, which is cooler than the historical average.
In general, the average temperature in Indianapolis at the beginning of August is 29.6 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 29.3 °C by the end of August.
Indianapolis experiences moderate rainfall in August, with an average of 9 rainy days and a total precipitation of 97.1 mm.
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Temperatures
Rain 🌧️
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22
Dry days
9
Rainy days
0
Snow days
28°/18°
Temperatures
15 km/h
Avg max wind
69 %
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 |  Partly cloudy | 27° /21° | 0 mm | 7 | |
| Aug. 2 | Partly cloudy | 29° /20° | 0 mm | 7 | |
| Aug. 3 |  Sunny | 32° /21° | 0 mm | 8 | |
| 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 28° 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 97.1 mm spread over approximately 9 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 15 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 💧
Typically, Indianapolis has 9 rainy days in August with a total of 97.1 mm of rainfall.
UV exposure in Indianapolis during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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