S
M
T
W
T
F
S
26
93°
80°
27
92°
80°
28
93°
79°
29
92°
80°
30
91°
80°
31
91°
79°
1
90°
80°
2
91°
79°
3
89°
79°
4
88°
78°
5
89°
77°
6
90°
78°
7
92°
76°
8
93°
77°
9
93°
76°
10
92°
77°
11
93°
78°
12
92°
79°
13
93°
79°
14
93°
78°
15
92°
78°
16
92°
77°
17
90°
77°
18
90°
76°
19
91°
77°
20
89°
77°
21
92°
78°
22
93°
77°
23
92°
77°
24
92°
79°
25
91°
77°
26
90°
77°
27
90°
76°
28
89°
77°
29
88°
77°
30
89°
76°
31
88°
77°
1
89°
78°
2
89°
78°
3
90°
77°
4
88°
76°
5
89°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Pete Beach
St. Pete Beach's August 2026 forecast shows daily high temperatures ranging from 88° to 93°, with overnight lows between 76° and 80°. The average high for August is 91° with an average low of 78°. 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. Pete Beach. See also: September | October | November.