S
M
T
W
T
F
S
26
75°
43°
27
71°
46°
28
74°
49°
29
68°
50°
30
67°
50°
31
66°
49°
1
65°
49°
2
66°
45°
3
66°
47°
4
69°
48°
5
71°
48°
6
72°
49°
7
73°
50°
8
73°
49°
9
71°
45°
10
72°
48°
11
71°
49°
12
73°
49°
13
74°
50°
14
74°
49°
15
73°
49°
16
72°
47°
17
72°
48°
18
73°
49°
19
73°
50°
20
72°
48°
21
71°
49°
22
72°
48°
23
72°
49°
24
69°
46°
25
69°
43°
26
68°
45°
27
70°
46°
28
73°
49°
29
72°
46°
30
70°
43°
31
70°
41°
1
69°
45°
2
71°
44°
3
70°
42°
4
68°
39°
5
61°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Decker Lake
Decker Lake's August 2026 forecast shows daily high temperatures ranging from 61° to 75°, with overnight lows between 39° and 50°. The average high for August is 71° with an average low of 47°. 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 Decker Lake. See also: September | October | November.
