S
M
T
W
T
F
S
26
64°
49°
27
72°
52°
28
63°
52°
29
65°
44°
30
59°
39°
1
51°
33°
2
53°
35°
3
60°
48°
4
71°
57°
5
66°
45°
6
55°
40°
7
52°
35°
8
59°
42°
9
63°
46°
10
66°
44°
11
65°
49°
12
66°
48°
13
64°
47°
14
63°
49°
15
68°
52°
16
65°
49°
17
69°
55°
18
75°
56°
19
75°
57°
20
74°
57°
21
77°
56°
22
76°
58°
23
76°
55°
24
70°
50°
25
69°
55°
26
75°
59°
27
77°
58°
28
70°
57°
29
71°
55°
30
72°
54°
31
76°
58°
1
71°
55°
2
75°
59°
3
75°
54°
4
71°
51°
5
71°
52°
6
72°
52°
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 51° to 77°, with overnight lows between 33° and 59°. The average high for May is 68° with an average low of 51°. 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.
