S
M
T
W
T
F
S
26
87°
70°
27
87°
69°
28
77°
65°
29
81°
62°
30
87°
62°
31
89°
68°
1
79°
68°
2
78°
64°
3
82°
60°
4
86°
56°
5
87°
60°
6
82°
69°
7
87°
67°
8
86°
68°
9
85°
58°
10
85°
68°
11
81°
68°
12
83°
68°
13
82°
68°
14
85°
67°
15
78°
62°
16
85°
70°
17
79°
65°
18
81°
62°
19
78°
63°
20
79°
62°
21
82°
57°
22
75°
60°
23
73°
57°
24
73°
54°
25
79°
61°
26
80°
62°
27
80°
58°
28
78°
58°
29
81°
62°
30
87°
69°
31
86°
69°
1
74°
58°
2
72°
58°
3
74°
57°
4
77°
56°
5
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sylvan Lake
Sylvan Lake's August 2026 forecast shows daily high temperatures ranging from 72° to 87°, with overnight lows between 56° and 69°. The average high for August is 79° with an average low of 60°. 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 Sylvan Lake. See also: September | October | November.
