S
M
T
W
T
F
S
26
65°
37°
27
72°
31°
28
68°
35°
29
65°
34°
30
52°
45°
1
55°
37°
2
51°
37°
3
53°
34°
4
60°
41°
5
72°
51°
6
58°
50°
7
55°
36°
8
51°
37°
9
52°
42°
10
58°
44°
11
59°
40°
12
58°
41°
13
55°
45°
14
56°
41°
15
60°
43°
16
60°
42°
17
59°
40°
18
60°
48°
19
61°
48°
20
63°
47°
21
67°
49°
22
67°
45°
23
59°
44°
24
61°
47°
25
62°
44°
26
63°
45°
27
63°
45°
28
61°
48°
29
64°
50°
30
68°
49°
31
65°
46°
1
64°
44°
2
63°
44°
3
64°
45°
4
63°
45°
5
63°
46°
6
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Gilsum
Gilsum's May 2026 forecast shows daily high temperatures ranging from 51° to 72°, with overnight lows between 34° and 51°. The average high for May is 60° with an average low of 44°. 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 Gilsum. See also: June | July | August.
