S
M
T
W
T
F
S
26
86°
68°
27
85°
68°
28
84°
67°
29
85°
66°
30
80°
62°
31
77°
59°
1
77°
66°
2
78°
66°
3
80°
65°
4
84°
66°
5
82°
67°
6
81°
66°
7
78°
65°
8
77°
63°
9
76°
63°
10
79°
61°
11
82°
64°
12
82°
66°
13
84°
67°
14
85°
61°
15
83°
67°
16
83°
63°
17
84°
57°
18
77°
57°
19
74°
56°
20
75°
55°
21
75°
56°
22
76°
56°
23
76°
57°
24
77°
56°
25
80°
57°
26
81°
62°
27
81°
56°
28
75°
55°
29
73°
55°
30
75°
60°
31
76°
55°
1
77°
54°
2
74°
53°
3
73°
56°
4
75°
62°
5
80°
58°
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 73° to 86°, with overnight lows between 53° and 68°. The average high for August is 79° with an average low of 61°. 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.
