Indianapolis, Indiana weather in March

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

Average high: 55°F
Average low: 35°F
Rainy days: ~11 per month
Total precipitation: 5.3 in
Warmest recorded: 76°F
Coldest recorded: 13°F

Expect March days in Indianapolis, Indiana to top out around 55°F and cool to about 35°F overnight, with roughly 11 days of measurable rain across the month. In recent years March has ranged from 13°F to 76°F.

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