S
M
T
W
T
F
S
26
64°
49°
27
72°
52°
28
63°
52°
29
65°
44°
30
59°
39°
1
53°
42°
2
52°
34°
3
62°
38°
4
76°
52°
5
68°
45°
6
58°
44°
7
61°
38°
8
69°
51°
9
71°
49°
10
65°
43°
11
61°
40°
12
68°
53°
13
64°
43°
14
63°
45°
15
70°
53°
16
75°
55°
17
74°
56°
18
75°
55°
19
76°
55°
20
75°
56°
21
77°
57°
22
79°
52°
23
73°
57°
24
76°
56°
25
77°
58°
26
78°
59°
27
78°
59°
28
79°
58°
29
79°
60°
30
78°
58°
31
79°
55°
1
73°
53°
2
74°
57°
3
78°
60°
4
80°
60°
5
76°
59°
6
78°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mount Summit
Mount Summit's May 2026 forecast shows daily high temperatures ranging from 61° to 80°, with overnight lows between 40° and 60°. The average high for May is 74° with an average low of 54°. 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 Mount Summit. See also: June | July | August.
