S
M
T
W
T
F
S
26
89°
69°
27
90°
75°
28
94°
77°
29
87°
67°
30
77°
63°
1
66°
55°
2
75°
53°
3
79°
58°
4
82°
69°
5
84°
74°
6
90°
62°
7
74°
57°
8
81°
66°
9
85°
68°
10
88°
67°
11
83°
67°
12
85°
67°
13
89°
66°
14
89°
67°
15
91°
69°
16
82°
68°
17
83°
68°
18
82°
69°
19
84°
67°
20
86°
70°
21
89°
68°
22
84°
63°
23
83°
64°
24
84°
67°
25
87°
65°
26
84°
64°
27
84°
65°
28
82°
67°
29
83°
69°
30
84°
70°
31
85°
71°
1
86°
71°
2
86°
70°
3
87°
74°
4
88°
74°
5
88°
72°
6
87°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Schertz
Schertz's May 2026 forecast shows daily high temperatures ranging from 74° to 91°, with overnight lows between 53° and 74°. The average high for May is 85° with an average low of 67°. 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 Schertz. See also: June | July | August.