S
M
T
W
T
F
S
26
81°
59°
27
64°
46°
28
77°
45°
29
82°
57°
30
77°
61°
1
70°
59°
2
63°
50°
3
72°
43°
4
79°
45°
5
81°
48°
6
88°
54°
7
79°
68°
8
77°
57°
9
79°
59°
10
88°
64°
11
88°
64°
12
73°
59°
13
77°
59°
14
83°
50°
15
81°
53°
16
88°
64°
17
89°
62°
18
90°
64°
19
89°
62°
20
88°
67°
21
88°
66°
22
84°
64°
23
86°
66°
24
83°
63°
25
84°
64°
26
84°
63°
27
87°
62°
28
86°
67°
29
88°
67°
30
88°
66°
31
87°
66°
1
87°
67°
2
86°
67°
3
88°
66°
4
85°
67°
5
84°
67°
6
87°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. George
St. George's May 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 50° and 68°. The average high for May is 86° with an average low of 64°. 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 St. George. See also: June | July | August.