S
M
T
W
T
F
S
26
100°
86°
27
107°
80°
28
106°
80°
29
93°
72°
30
105°
75°
31
109°
75°
1
111°
76°
2
112°
76°
3
110°
80°
4
107°
76°
5
108°
78°
6
110°
81°
7
112°
80°
8
111°
82°
9
111°
84°
10
104°
82°
11
102°
79°
12
98°
76°
13
97°
73°
14
99°
75°
15
99°
74°
16
98°
73°
17
99°
74°
18
98°
73°
19
100°
70°
20
94°
68°
21
93°
66°
22
95°
68°
23
100°
70°
24
101°
73°
25
101°
73°
26
100°
72°
27
101°
72°
28
101°
71°
29
95°
70°
30
91°
64°
31
92°
65°
1
93°
66°
2
91°
62°
3
90°
63°
4
90°
63°
5
89°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. George
St. George's August 2026 forecast shows daily high temperatures ranging from 89° to 112°, with overnight lows between 61° and 84°. The average high for August is 99° 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 St. George. See also: September | October | November.
