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Indianapolis

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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 7.4–19.1°C, 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 23.0–24.7°C, 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 14.1–20.9°C, 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 -0.7–3.0°C, 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. 13°C / Annual rainfall: approx. 956 mm / Summer humidity: 60%–70% / Rainiest month: July

Indianapolis monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-0.7°C
85
February
3°C
74.3
March
7.4°C
111.7
April
12.2°C
122.7
May
19.1°C
100.7
June
23°C
40.3
July
24.7°C
132.3
August
23.8°C
80.3
September
20.9°C
44.7
October
14.1°C
38
November
7.7°C
53.3
December
2.7°C
73

Indianapolis weather for the next seven days

12/27
Saturday
Patchy rain nearby
10.5°C/6.3°C
12/28
Sunday
Heavy rain
15.7°C/7.1°C
12/29
Monday
Heavy rain
4.4°C/-6.2°C
12/30
Tuesday
Partly Cloudy
-1.9°C/-7.4°C
12/31
Wednesday
Partly Cloudy
0.7°C/-3.9°C
1/1
Thursday
Overcast
-4.6°C/-7.5°C
1/2
Friday
Partly Cloudy
-2.1°C/-7°C