S
M
T
W
T
F
S
26
90°
72°
27
94°
72°
28
94°
72°
29
92°
72°
30
91°
71°
31
93°
72°
1
94°
71°
2
94°
72°
3
93°
73°
4
91°
72°
5
91°
73°
6
93°
72°
7
91°
72°
8
90°
71°
9
90°
73°
10
91°
73°
11
90°
72°
12
90°
73°
13
91°
73°
14
93°
74°
15
95°
73°
16
94°
73°
17
93°
72°
18
90°
71°
19
89°
72°
20
90°
73°
21
93°
72°
22
93°
72°
23
91°
71°
24
91°
71°
25
92°
72°
26
94°
73°
27
93°
73°
28
93°
72°
29
92°
74°
30
92°
73°
31
93°
72°
1
93°
72°
2
91°
71°
3
91°
71°
4
89°
70°
5
92°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Marks
St. Marks's August 2026 forecast shows daily high temperatures ranging from 89° to 95°, with overnight lows between 70° and 74°. The average high for August is 92° 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. Marks. See also: September | October | November.
