S
M
T
W
T
F
S
26
80°
53°
27
76°
52°
28
64°
49°
29
63°
44°
30
61°
41°
1
62°
39°
2
64°
39°
3
78°
46°
4
86°
48°
5
62°
46°
6
60°
41°
7
70°
38°
8
76°
44°
9
81°
48°
10
74°
41°
11
77°
46°
12
84°
53°
13
79°
52°
14
82°
49°
15
89°
59°
16
86°
63°
17
84°
64°
18
77°
65°
19
67°
51°
20
66°
47°
21
70°
52°
22
72°
56°
23
79°
57°
24
84°
53°
25
88°
60°
26
N/A
27
91°
62°
28
89°
59°
29
85°
59°
30
87°
58°
31
84°
58°
1
85°
57°
2
88°
56°
3
83°
60°
4
84°
60°
5
86°
61°
6
87°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Indianapolis
Indianapolis's May 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 56° and 63°. The average high for May is 86° with an average low of 59°. 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.
