S
M
T
W
T
F
S
26
42°
30°
27
64°
35°
28
43°
32°
29
33°
30°
30
36°
28°
1
42°
23°
2
50°
17°
3
54°
28°
4
48°
30°
5
36°
26°
6
39°
29°
7
41°
31°
8
51°
30°
9
43°
32°
10
39°
30°
11
49°
30°
12
43°
26°
13
59°
34°
14
66°
26°
15
64°
45°
16
54°
31°
17
57°
24°
18
45°
32°
19
N/A
20
48°
30°
21
62°
35°
22
67°
40°
23
64°
46°
24
59°
46°
25
73°
49°
26
78°
50°
27
80°
49°
28
75°
50°
29
76°
49°
30
75°
49°
31
70°
48°
1
69°
52°
2
70°
47°
3
72°
46°
4
75°
47°
5
69°
47°
6
70°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Greenstone
Greenstone's May 2026 forecast shows daily high temperatures ranging from 48° to 80°, with overnight lows between 30° and 52°. The average high for May is 70° with an average low of 46°. 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 Greenstone. See also: June | July | August.
