S
M
T
W
T
F
S
30
84°
56°
31
78°
67°
1
88°
70°
2
72°
67°
3
88°
68°
4
86°
73°
5
81°
65°
6
79°
61°
7
81°
56°
8
82°
62°
9
88°
70°
10
86°
66°
11
81°
57°
12
80°
60°
13
85°
62°
14
83°
62°
15
81°
61°
16
78°
58°
17
78°
57°
18
77°
58°
19
77°
55°
20
76°
54°
21
79°
58°
22
71°
58°
23
71°
57°
24
72°
57°
25
73°
56°
26
77°
54°
27
74°
51°
28
74°
55°
29
77°
56°
30
77°
56°
1
76°
55°
2
75°
56°
3
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Pennington
Pennington's September 2026 forecast shows daily high temperatures ranging from 71° to 88°, with overnight lows between 51° and 70°. The average high for September is 78° with an average low of 58°. 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 Pennington. See also: October | November | December.
