S
M
T
W
T
F
S
26
59°
44°
27
58°
45°
28
61°
44°
29
64°
46°
30
63°
47°
1
64°
47°
2
62°
45°
3
61°
46°
4
61°
43°
5
62°
44°
6
64°
54°
7
73°
53°
8
69°
49°
9
63°
52°
10
65°
47°
11
62°
45°
12
62°
44°
13
63°
46°
14
65°
50°
15
65°
52°
16
67°
53°
17
72°
56°
18
72°
48°
19
66°
48°
20
67°
49°
21
71°
59°
22
75°
60°
23
76°
60°
24
77°
59°
25
75°
61°
26
79°
62°
27
79°
57°
28
72°
53°
29
80°
60°
30
82°
56°
31
78°
55°
1
79°
54°
2
78°
56°
3
76°
60°
4
79°
61°
5
74°
61°
6
74°
63°
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 82°, with overnight lows between 43° and 63°. The average high for May is 69° with an average low of 52°. 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.
