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
66°
52°
9
70°
50°
10
80°
52°
11
68°
45°
12
59°
42°
13
61°
46°
14
58°
43°
15
67°
44°
16
65°
42°
17
63°
40°
18
69°
46°
19
69°
44°
20
70°
43°
21
71°
41°
22
70°
49°
23
71°
47°
24
63°
45°
25
70°
46°
26
72°
47°
27
72°
47°
28
71°
45°
29
67°
45°
30
61°
44°
1
61°
41°
2
57°
38°
3
56°
42°
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 56° to 80°, with overnight lows between 38° and 52°. The average high for September is 66° 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 September weather will actually feel in Rocklake. See also: October | November | December.
