S
M
T
W
T
F
S
26
62°
35°
27
55°
35°
28
55°
37°
29
51°
36°
30
42°
34°
1
55°
30°
2
65°
30°
3
69°
37°
4
71°
42°
5
47°
31°
6
33°
25°
7
58°
39°
8
64°
40°
9
64°
34°
10
64°
40°
11
76°
49°
12
73°
42°
13
69°
42°
14
68°
45°
15
71°
47°
16
70°
42°
17
69°
44°
18
74°
44°
19
66°
36°
20
57°
36°
21
58°
38°
22
59°
40°
23
59°
38°
24
61°
38°
25
60°
36°
26
61°
36°
27
67°
40°
28
69°
40°
29
66°
40°
30
65°
39°
31
65°
40°
1
64°
41°
2
69°
41°
3
72°
45°
4
71°
42°
5
62°
42°
6
64°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Green Mountain Falls
Green Mountain Falls's May 2026 forecast shows daily high temperatures ranging from 33° to 76°, with overnight lows between 25° and 49°. The average high for May is 65° with an average low of 40°. 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 Green Mountain Falls. See also: June | July | August.