S
M
T
W
T
F
S
26
89°
63°
27
86°
65°
28
90°
58°
29
92°
61°
30
92°
71°
1
95°
71°
2
85°
66°
3
80°
57°
4
84°
58°
5
87°
57°
6
95°
60°
7
95°
68°
8
95°
73°
9
91°
70°
10
93°
70°
11
94°
70°
12
88°
71°
13
90°
70°
14
90°
67°
15
93°
63°
16
95°
67°
17
93°
73°
18
93°
65°
19
91°
70°
20
93°
67°
21
94°
69°
22
91°
73°
23
91°
73°
24
94°
70°
25
93°
73°
26
94°
72°
27
95°
76°
28
89°
72°
29
92°
73°
30
87°
73°
31
86°
73°
1
89°
73°
2
88°
69°
3
85°
66°
4
86°
65°
5
87°
66°
6
88°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Morriston
Morriston's May 2026 forecast shows daily high temperatures ranging from 85° to 92°, with overnight lows between 65° and 73°. The average high for May is 88° with an average low of 69°. 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 Morriston. See also: June | July | August.
