S
M
T
W
T
F
S
28
64°
51°
29
72°
43°
30
66°
35°
1
64°
31°
2
64°
38°
3
63°
44°
4
63°
43°
5
69°
31°
6
73°
43°
7
65°
49°
8
57°
38°
9
66°
44°
10
65°
40°
11
62°
44°
12
61°
43°
13
67°
32°
14
75°
38°
15
78°
38°
16
83°
43°
17
85°
49°
18
74°
38°
19
76°
42°
20
81°
45°
21
84°
46°
22
83°
49°
23
82°
47°
24
77°
44°
25
77°
44°
26
75°
43°
27
71°
46°
28
74°
49°
29
68°
50°
30
67°
50°
31
66°
49°
1
65°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Decker Lake
Decker Lake's July 2026 forecast shows daily high temperatures ranging from 65° to 85°, with overnight lows between 38° and 50°. The average high for July is 76° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Decker Lake. See also: August | September | October.
