July weather forecast and climate
Indiana, USA

Flag of Indiana, USA
Flag of Indiana, USA

Weather in July

July is by far the hottest month of the year in Indiana, but extreme temperatures are uncommon. The average high temperatures in the state are between 82°F (27.8°C) to 92°F (33.3°C), and the average low temperatures are in the warm range of 61°F (16.1°C) to 70°F (21.1°C). Day temperatures often cross 95°F (35°C) in the south, and places like Evansville and Charlestown register between 64°F (17.8°C) to 92°F (33.3°C), with a sharp drop during the night.
The 8 to 9 hours of daily sunshine bring oppressive heat in the wake of high humidity. Thunderstorms with lightning and heavy rain are frequent at the peak of summer, and it advisable to keep an eye on the weather for storm activity.
Keep in mind that mornings and evenings are the best times while exploring state parks such as The Indiana Dunes State Park and Turkey Run State Park. The hot and muggy conditions are favorable for swimming, boating, and fishing in the creeks, lakes, and rivers. July is the prime time for summer vacations in Indiana.
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