S
M
T
W
T
F
S
30
71°
49°
31
82°
43°
1
78°
52°
2
68°
50°
3
64°
47°
4
68°
46°
5
75°
46°
6
75°
51°
7
72°
50°
8
72°
49°
9
76°
50°
10
79°
51°
11
80°
51°
12
77°
50°
13
76°
50°
14
75°
46°
15
80°
51°
16
79°
49°
17
67°
44°
18
67°
44°
19
73°
49°
20
71°
47°
21
66°
42°
22
66°
43°
23
71°
46°
24
65°
45°
25
67°
43°
26
70°
46°
27
72°
49°
28
72°
48°
29
65°
43°
30
72°
46°
1
73°
47°
2
63°
47°
3
60°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Plummer
Plummer's September 2026 forecast shows daily high temperatures ranging from 60° to 80°, with overnight lows between 42° and 52°. The average high for September is 71° with an average low of 47°. 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 Plummer. See also: October | November | December.
