S
M
T
W
T
F
S
26
99°
75°
27
93°
76°
28
97°
75°
29
94°
77°
30
89°
74°
31
92°
74°
1
90°
76°
2
89°
77°
3
83°
74°
4
90°
75°
5
92°
71°
6
91°
72°
7
90°
69°
8
91°
72°
9
97°
74°
10
97°
75°
11
97°
76°
12
97°
77°
13
98°
73°
14
100°
76°
15
97°
74°
16
97°
78°
17
97°
77°
18
97°
78°
19
100°
74°
20
95°
74°
21
94°
73°
22
89°
76°
23
86°
75°
24
97°
73°
25
95°
74°
26
95°
74°
27
93°
72°
28
91°
74°
29
94°
72°
30
92°
74°
31
92°
73°
1
90°
73°
2
91°
73°
3
91°
73°
4
90°
71°
5
91°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Morriston
Morriston's August 2026 forecast shows daily high temperatures ranging from 90° to 92°, with overnight lows between 70° and 73°. The average high for August is 91° with an average low of 72°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Morriston. See also: September | October | November.
