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Indianapolis, USA Weather Averages

July is the hottest month in Indianapolis with an average temperature of 24°C (75°F) and the coldest is January at -4°C (25°F) with the most daily sunshine hours at 10 in July. The wettest month is July with an average of 112mm of rain..

Average Temperature Indianapolis

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Indianapolis

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Rainfall Indianapolis

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Average Daily Sunshine Hours Indianapolis

What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer
What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

Indianapolis : Next 24-Hour Weather

Today - 16th May 2026

Sunrise 06:29

Sunrise

Sunset 20:54

Sunset
18:00
Light rain
21°C (68°F)
19:00
Light rain shower
20°C (67°F)
20:00
Light rain
20°C (67°F)
21:00
Patchy rain possible
19°C (66°F)
22:00
Light rain shower
19°C (66°F)
23:00
Light rain shower
19°C (66°F)

Tomorrow - 17th May 2026

Sunrise 06:29

Sunrise

Sunset 20:54

Sunset
0:00
Patchy rain possible
19°C (66°F)
1:00
Partly cloudy
19°C (65°F)
2:00
Mist
19°C (65°F)
3:00
Mist
18°C (64°F)
4:00
Mist
18°C (63°F)
5:00
Patchy light drizzle
18°C (63°F)
6:00
Fog
18°C (63°F)
7:00
Fog
18°C (64°F)
8:00
Mist
19°C (65°F)
9:00
Overcast
20°C (67°F)
10:00
Partly cloudy
21°C (70°F)
11:00
Partly cloudy
23°C (73°F)
12:00
Partly cloudy
25°C (76°F)
13:00
Cloudy
26°C (79°F)
14:00
Partly cloudy
27°C (81°F)
15:00
Clear
28°C (82°F)
16:00
Clear
29°C (83°F)
17:00
Clear
28°C (82°F)