S
M
T
W
T
F
S
26
92°
82°
27
86°
77°
28
88°
83°
29
86°
80°
30
86°
78°
31
87°
83°
1
87°
77°
2
83°
75°
3
84°
76°
4
89°
76°
5
85°
78°
6
93°
74°
7
91°
77°
8
90°
78°
9
91°
79°
10
93°
80°
11
92°
80°
12
91°
82°
13
90°
81°
14
92°
82°
15
94°
83°
16
93°
82°
17
90°
81°
18
91°
81°
19
92°
82°
20
90°
82°
21
89°
78°
22
90°
78°
23
88°
77°
24
88°
79°
25
88°
78°
26
89°
78°
27
89°
77°
28
88°
78°
29
88°
79°
30
89°
79°
31
90°
78°
1
91°
79°
2
91°
79°
3
90°
78°
4
91°
79°
5
91°
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 94°, with overnight lows between 77° and 83°. The average high for August is 90° with an average low of 79°. 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.