S
M
T
W
T
F
S
26
87°
72°
27
87°
71°
28
88°
72°
29
87°
71°
30
88°
72°
31
90°
72°
1
91°
73°
2
92°
73°
3
92°
72°
4
91°
72°
5
90°
71°
6
88°
72°
7
91°
72°
8
88°
71°
9
89°
72°
10
90°
72°
11
91°
71°
12
89°
72°
13
89°
72°
14
90°
70°
15
92°
71°
16
92°
71°
17
90°
70°
18
92°
71°
19
91°
70°
20
92°
72°
21
92°
71°
22
91°
69°
23
89°
68°
24
88°
69°
25
89°
71°
26
89°
70°
27
90°
70°
28
90°
69°
29
91°
71°
30
91°
71°
31
89°
70°
1
88°
71°
2
88°
71°
3
89°
70°
4
88°
69°
5
89°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Saint Catherine
Saint Catherine's August 2026 forecast shows daily high temperatures ranging from 87° to 92°, with overnight lows between 68° and 73°. The average high for August is 90° with an average low of 71°. 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 Saint Catherine. See also: September | October | November.
