S
M
T
W
T
F
S
30
84°
54°
31
72°
63°
1
73°
59°
2
75°
59°
3
80°
60°
4
81°
62°
5
72°
57°
6
69°
55°
7
79°
51°
8
81°
53°
9
79°
57°
10
86°
65°
11
78°
52°
12
77°
47°
13
71°
57°
14
75°
53°
15
66°
48°
16
75°
47°
17
80°
61°
18
79°
59°
19
63°
50°
20
63°
50°
21
63°
51°
22
64°
54°
23
66°
52°
24
63°
53°
25
61°
55°
26
62°
56°
27
65°
55°
28
65°
54°
29
68°
55°
30
69°
56°
1
70°
54°
2
70°
53°
3
68°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Plympton
Plympton's September 2026 forecast shows daily high temperatures ranging from 61° to 70°, with overnight lows between 51° and 56°. The average high for September is 66° with an average low of 54°. 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 Plympton. See also: October | November | December.
