S
M
T
W
T
F
S
26
29°
19°
27
42°
17°
28
51°
23°
29
60°
26°
30
70°
31°
1
68°
41°
2
69°
36°
3
65°
42°
4
49°
32°
5
50°
26°
6
62°
28°
7
70°
46°
8
67°
41°
9
65°
40°
10
73°
44°
11
66°
44°
12
73°
40°
13
73°
46°
14
59°
45°
15
55°
32°
16
42°
31°
17
55°
32°
18
59°
37°
19
65°
42°
20
64°
42°
21
63°
39°
22
61°
40°
23
64°
43°
24
62°
41°
25
67°
42°
26
61°
44°
27
63°
42°
28
67°
40°
29
60°
36°
30
60°
45°
31
67°
46°
1
66°
46°
2
64°
45°
3
63°
46°
4
63°
43°
5
60°
39°
6
60°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Heisler
Heisler's May 2026 forecast shows daily high temperatures ranging from 42° to 67°, with overnight lows between 31° and 46°. The average high for May is 61° with an average low of 41°. 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 Heisler. See also: June | July | August.
