S
M
T
W
T
F
S
26
92°
77°
27
92°
77°
28
96°
80°
29
96°
76°
30
94°
78°
1
86°
67°
2
77°
59°
3
84°
67°
4
86°
74°
5
90°
76°
6
100°
77°
7
85°
71°
8
84°
73°
9
88°
74°
10
91°
72°
11
85°
70°
12
91°
72°
13
92°
74°
14
92°
74°
15
93°
71°
16
88°
74°
17
87°
73°
18
92°
73°
19
93°
75°
20
94°
75°
21
94°
73°
22
93°
71°
23
88°
70°
24
90°
75°
25
93°
75°
26
90°
70°
27
89°
70°
28
89°
73°
29
90°
73°
30
90°
75°
31
91°
76°
1
90°
74°
2
91°
75°
3
91°
76°
4
92°
77°
5
92°
77°
6
93°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mission
Mission's May 2026 forecast shows daily high temperatures ranging from 77° to 100°, with overnight lows between 59° and 77°. The average high for May is 90° with an average low of 73°. 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 Mission. See also: June | July | August.
