S
M
T
W
T
F
S
26
80°
59°
27
81°
64°
28
76°
59°
29
77°
57°
30
79°
55°
31
82°
63°
1
78°
63°
2
77°
60°
3
78°
63°
4
80°
62°
5
82°
63°
6
76°
61°
7
77°
61°
8
81°
57°
9
78°
60°
10
80°
61°
11
78°
60°
12
79°
62°
13
80°
60°
14
75°
59°
15
76°
60°
16
78°
60°
17
79°
59°
18
78°
60°
19
74°
59°
20
78°
60°
21
74°
59°
22
74°
59°
23
79°
58°
24
78°
52°
25
70°
54°
26
73°
59°
27
78°
59°
28
77°
58°
29
76°
58°
30
73°
53°
31
68°
49°
1
68°
52°
2
69°
50°
3
68°
55°
4
72°
57°
5
77°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Innisfil
Innisfil's August 2026 forecast shows daily high temperatures ranging from 68° to 82°, with overnight lows between 49° and 64°. The average high for August is 76° with an average low of 59°. 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 Innisfil. See also: September | October | November.
