S
M
T
W
T
F
S
26
44°
27°
27
44°
26°
28
53°
28°
29
55°
30°
30
59°
32°
1
68°
31°
2
71°
31°
3
72°
39°
4
70°
40°
5
56°
30°
6
67°
24°
7
68°
45°
8
70°
39°
9
70°
41°
10
79°
39°
11
79°
55°
12
79°
49°
13
90°
52°
14
83°
45°
15
66°
44°
16
65°
41°
17
50°
30°
18
48°
28°
19
59°
36°
20
58°
38°
21
54°
35°
22
64°
41°
23
71°
42°
24
76°
46°
25
78°
44°
26
68°
42°
27
78°
46°
28
74°
46°
29
76°
49°
30
68°
44°
31
69°
43°
1
64°
44°
2
65°
41°
3
70°
46°
4
72°
46°
5
69°
45°
6
64°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Gallatin Gateway
Gallatin Gateway's May 2026 forecast shows daily high temperatures ranging from 48° to 78°, with overnight lows between 28° and 49°. The average high for May is 67° with an average low of 42°. 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 Gallatin Gateway. See also: June | July | August.
