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Indianapolis Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Indianapolis year round climate

  • Spring (March–May): Average 45–66°F, mild but with fluctuating temperatures; rainfall is higher. Common activities: Outdoor walks, museum visits. Suggested clothing: Jacket, long-sleeved shirts, comfortable shoes.
  • Summer (June–August): Average 73–76°F, hot and humid with occasional thunderstorms. Common activities: Swimming, outdoor picnics, outdoor concerts. Suggested clothing: Light and breathable clothing, sun hat, sunglasses.
  • Autumn (September–November): Average 57–69°F, pleasant and comfortable, cool and dry; colorful autumn leaves are a feature. Common activities: Leaf viewing, hiking, farm visits. Suggested clothing: Light jacket, long-sleeved shirts, comfortable shoes.
  • Winter (December–February): Average -33–37°F, cold and dry with possible snowfall. Common activities: Indoor activities, museum visits, ice skating. Suggested clothing: Heavy coat, scarf, gloves, hat.

Indianapolis climatological average

Annual average temperature: approx. 55.4°F / Annual rainfall: approx. 956 mm / Summer humidity: 60%–70% / Rainiest month: July

Indianapolis monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
30.7°F
85
February
37.4°F
74.3
March
45.3°F
111.7
April
54°F
122.7
May
66.4°F
100.7
June
73.4°F
40.3
July
76.5°F
132.3
August
74.8°F
80.3
September
69.6°F
44.7
October
57.4°F
38
November
45.9°F
53.3
December
36.9°F
73

Indianapolis weather for the next seven days

5/30
Saturday
Sunny
88.3°F/57°F
5/31
Sunday
Partly Cloudy
74.9°F/53.6°F
6/1
Monday
Sunny
78.9°F/62.6°F
6/2
Tuesday
Sunny
74.1°F/58.4°F
6/3
Wednesday
Sunny
76.2°F/55.1°F
6/4
Thursday
Partly Cloudy
78.2°F/58.2°F
6/5
Friday
Sunny
83°F/61.4°F