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°
57°
26
80°
59°
27
79°
58°
28
79°
60°
29
81°
67°
30
84°
69°
31
86°
71°
1
88°
66°
2
85°
66°
3
84°
65°
4
84°
65°
5
80°
64°
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 79° to 88°, with overnight lows between 58° and 71°. The average high for August is 83° with an average low of 65°. 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.
