S
M
T
W
T
F
S
26
73°
42°
27
72°
55°
28
65°
49°
29
58°
39°
30
60°
36°
1
55°
37°
2
59°
32°
3
72°
45°
4
82°
43°
5
57°
47°
6
57°
35°
7
65°
29°
8
72°
42°
9
77°
50°
10
68°
41°
11
69°
42°
12
76°
45°
13
68°
44°
14
75°
38°
15
80°
64°
16
84°
62°
17
87°
68°
18
78°
64°
19
71°
48°
20
65°
46°
21
68°
49°
22
75°
53°
23
77°
57°
24
76°
58°
25
78°
60°
26
76°
59°
27
79°
60°
28
86°
64°
29
72°
56°
30
70°
55°
31
71°
53°
1
71°
51°
2
72°
51°
3
71°
56°
4
74°
62°
5
81°
63°
6
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Harmon
Harmon's May 2026 forecast shows daily high temperatures ranging from 65° to 87°, with overnight lows between 46° and 68°. The average high for May is 76° with an average low of 57°. 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 Harmon. See also: June | July | August.
