S
M
T
W
T
F
S
26
70°
41°
27
58°
40°
28
59°
42°
29
60°
45°
30
61°
42°
1
62°
42°
2
64°
45°
3
65°
52°
4
69°
53°
5
72°
54°
6
73°
53°
7
68°
48°
8
71°
50°
9
73°
53°
10
74°
56°
11
75°
57°
12
76°
57°
13
74°
49°
14
66°
47°
15
69°
49°
16
69°
49°
17
67°
48°
18
70°
51°
19
69°
49°
20
74°
54°
21
72°
59°
22
76°
50°
23
77°
49°
24
71°
49°
25
70°
50°
26
71°
50°
27
71°
52°
28
74°
60°
29
78°
58°
30
74°
59°
31
79°
61°
1
78°
54°
2
76°
54°
3
72°
53°
4
74°
55°
5
78°
59°
6
81°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Indianapolis
Indianapolis's May 2026 forecast shows daily high temperatures ranging from 58° to 81°, with overnight lows between 40° and 64°. The average high for May is 71° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Indianapolis. See also: June | July | August.
