S
M
T
W
T
F
S
26
51°
40°
27
68°
37°
28
65°
34°
29
69°
49°
30
72°
48°
1
66°
48°
2
58°
45°
3
61°
41°
4
71°
56°
5
77°
58°
6
73°
51°
7
68°
43°
8
64°
44°
9
69°
51°
10
72°
51°
11
70°
53°
12
72°
55°
13
74°
54°
14
75°
53°
15
72°
56°
16
73°
55°
17
72°
58°
18
73°
59°
19
80°
59°
20
80°
58°
21
77°
60°
22
81°
60°
23
81°
61°
24
82°
60°
25
78°
60°
26
75°
59°
27
76°
61°
28
82°
62°
29
79°
62°
30
81°
61°
31
80°
62°
1
78°
59°
2
75°
57°
3
76°
56°
4
76°
56°
5
77°
57°
6
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Galestown
Galestown's May 2026 forecast shows daily high temperatures ranging from 58° to 82°, with overnight lows between 41° and 62°. The average high for May is 74° with an average low of 56°. 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 Galestown. See also: June | July | August.