S
M
T
W
T
F
S
26
60°
24°
27
55°
37°
28
50°
29°
29
48°
26°
30
49°
24°
1
57°
36°
2
67°
35°
3
70°
43°
4
51°
29°
5
49°
29°
6
52°
32°
7
60°
40°
8
64°
36°
9
63°
37°
10
64°
40°
11
66°
40°
12
63°
39°
13
68°
43°
14
68°
42°
15
60°
37°
16
62°
44°
17
62°
47°
18
70°
48°
19
67°
45°
20
63°
39°
21
63°
41°
22
64°
40°
23
63°
40°
24
65°
42°
25
65°
42°
26
68°
48°
27
67°
51°
28
66°
44°
29
74°
46°
30
66°
43°
31
67°
50°
1
67°
50°
2
68°
52°
3
67°
53°
4
68°
53°
5
68°
52°
6
69°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Gilby
Gilby's May 2026 forecast shows daily high temperatures ranging from 49° to 74°, with overnight lows between 29° and 53°. The average high for May is 64° with an average low of 43°. 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 Gilby. See also: June | July | August.