Indiana Weather in July

The climate in Indiana during July can be summarized as warm, humid and wet.

July is in the summer in Indiana and is typically the warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (83°F), whilst at night 16°C (60°F) is normal.

On average July is the wettest month of the year in Indiana with around 121mm 4.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.1 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Indiana in July 2025.