S
M
T
W
T
F
S
30
88°
61°
31
82°
62°
1
83°
63°
2
86°
67°
3
86°
66°
4
85°
66°
5
85°
65°
6
86°
67°
7
86°
65°
8
85°
64°
9
84°
64°
10
83°
62°
11
83°
61°
12
84°
64°
13
84°
64°
14
85°
63°
15
Hist. Avg.
81°
60°
16
Hist. Avg.
81°
60°
17
Hist. Avg.
80°
60°
18
Hist. Avg.
80°
59°
19
Hist. Avg.
80°
59°
20
Hist. Avg.
80°
58°
21
Hist. Avg.
79°
58°
22
Hist. Avg.
79°
58°
23
Hist. Avg.
79°
57°
24
Hist. Avg.
78°
57°
25
Hist. Avg.
78°
56°
26
Hist. Avg.
78°
56°
27
Hist. Avg.
77°
56°
28
Hist. Avg.
77°
55°
29
Hist. Avg.
77°
55°
30
Hist. Avg.
76°
54°
1
Hist. Avg.
76°
54°
2
Hist. Avg.
76°
54°
3
Hist. Avg.
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cedar Grove
Cedar Grove's September 2026 forecast shows daily high temperatures ranging from 82° to 88°, with overnight lows between 61° and 67°. The average high for September is 85° with an average low of 64°. 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 Cedar Grove. See also: October | November | December.