S
M
T
W
T
F
S
30
77°
64°
31
81°
55°
1
76°
55°
2
79°
52°
3
70°
59°
4
82°
52°
5
81°
64°
6
75°
63°
7
72°
64°
8
70°
57°
9
72°
54°
10
80°
52°
11
66°
43°
12
59°
39°
13
61°
44°
14
58°
42°
15
65°
43°
16
68°
44°
17
69°
45°
18
72°
44°
19
70°
45°
20
67°
45°
21
66°
42°
22
65°
43°
23
68°
40°
24
63°
45°
25
74°
47°
26
72°
46°
27
72°
48°
28
74°
45°
29
67°
44°
30
70°
44°
1
62°
40°
2
64°
42°
3
57°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rocklake
Rocklake's September 2026 forecast shows daily high temperatures ranging from 57° to 80°, with overnight lows between 39° and 52°. The average high for September is 67° with an average low of 44°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Rocklake. See also: October | November | December.
