Indianapolis, Indiana weather in July

Averages from 2021–2025 (155 days of record).

Average high: 85°F
Average low: 68°F
Rainy days: ~13 per month
Total precipitation: 5.0 in
Warmest recorded: 95°F
Coldest recorded: 55°F

Expect July days in Indianapolis, Indiana to top out around 85°F and cool to about 68°F overnight, with roughly 13 days of measurable rain across the month. In recent years July has ranged from 55°F to 95°F.

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Current Indianapolis, Indiana forecast → · Historical data by Open-Meteo (ERA5).