S
M
T
W
T
F
S
30
76°
54°
31
77°
53°
1
78°
52°
2
75°
51°
3
74°
52°
4
73°
53°
5
73°
53°
6
74°
52°
7
74°
50°
8
75°
52°
9
72°
54°
10
73°
55°
11
75°
54°
12
76°
56°
13
77°
58°
14
79°
57°
15
79°
55°
16
78°
56°
17
78°
56°
18
77°
55°
19
77°
56°
20
75°
56°
21
77°
55°
22
77°
55°
23
76°
56°
24
74°
53°
25
66°
48°
26
64°
49°
27
65°
50°
28
66°
51°
29
67°
50°
30
66°
52°
1
65°
49°
2
64°
49°
3
Hist. Avg.
69°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rock Haven
Rock Haven's September 2026 forecast shows daily high temperatures ranging from 64° to 79°, with overnight lows between 48° and 58°. The average high for September is 73° with an average low of 53°. 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 Rock Haven. See also: October | November | December.
