S
M
T
W
T
F
S
26
101°
76°
27
100°
78°
28
89°
77°
29
99°
77°
30
91°
76°
31
96°
71°
1
81°
67°
2
89°
66°
3
93°
66°
4
96°
67°
5
93°
73°
6
96°
74°
7
90°
73°
8
97°
70°
9
98°
76°
10
99°
78°
11
100°
78°
12
100°
80°
13
102°
78°
14
101°
80°
15
99°
77°
16
100°
77°
17
87°
68°
18
101°
63°
19
97°
75°
20
96°
70°
21
101°
69°
22
88°
70°
23
90°
66°
24
94°
66°
25
97°
71°
26
99°
73°
27
93°
68°
28
95°
60°
29
100°
66°
30
103°
73°
31
102°
72°
1
102°
73°
2
102°
76°
3
100°
74°
4
100°
73°
5
104°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Frontenac
Frontenac's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. 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 Frontenac. See also: September | October | November.
