Weather in Indianapolis in July 2025
Average weather
Average temperature in Indianapolis in July
The expected average maximum temperature in July is +30°C with a maximum of +33°C and a minimum of +16°C.
The average maximum temperature goes down 12% by the end of the month, compared with the beginning of the month, from +30°C to +28°C.
Is Indianapolis warm or cold in July?
Indianapolis is typically warm in July.
Maximum temperatures go up compared to the previous month from +28°C to +29°C. The minimum temperature also goes up from +18°C to +20°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
July is one of the warmest months in Indianapolis, here is the comparison with other months:
Climate in Indianapolis in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +28°C | +29°C | +29°C | ||||
| Min. temperature | ||||||
| +4°C | +10°C | +7°C | ||||
| Max. temperature | ||||||
| +40°C | +39°C | +37°C | ||||
| Rainfall | ||||||
| 95 mm | 93 mm | 79 mm | ||||
| Wind | ||||||
| 3 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 70% | 72% | 74% | ||||
| Air pressure | ||||||
| 1014 HPa | 1015 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 4 | 5 | 6 | ||||
| Cloudy days | ||||||
| 10 | 9 | 9 | ||||
| Rainy days | ||||||
| 14 | 15 | 13 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as good as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +28°C to +29°C during the day. As July arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 95 mm to 93 mm. Humidity rises from 70% to 72%. Winds are calmer in comparison to June, going down from 3 m/s to 2 m/s on average. The good news is there are likely to be more sunny days in July, from 4 to 5.
August brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Indianapolis is gradually increasing during July, going from 4 m/s to 4 m/s over the course of the month.
Rain
How was the weather last July in Indianapolis?
Climate Change over Years
The climate in Indianapolis in July has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+15°C) and the highest in 2012 (+19°C). The driest year was 1999 with only 656 mm of rainfall, and the wettest year was 2019 with 1833 mm.
FAQ
Is July a good time to visit Indianapolis?
Can you sunbathe in Indianapolis in July?
Is Indianapolis rainy in July?
Is it sunny in Indianapolis in July?
Other cities in USA
Monthly weather in Indianapolis
Source of the data
For this page, we’ve looked at the typical weather in Indianapolis, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.