S
M
T
W
T
F
S
30
76°
46°
31
78°
48°
1
83°
58°
2
86°
56°
3
87°
49°
4
79°
44°
5
73°
46°
6
75°
51°
7
74°
49°
8
78°
48°
9
77°
51°
10
78°
44°
11
74°
46°
12
75°
46°
13
76°
43°
14
74°
41°
15
69°
39°
16
69°
38°
17
70°
39°
18
69°
42°
19
73°
47°
20
80°
43°
21
79°
43°
22
74°
40°
23
68°
39°
24
65°
38°
25
63°
38°
26
64°
37°
27
65°
37°
28
66°
41°
29
70°
42°
30
74°
41°
1
Hist. Avg.
69°
40°
2
Hist. Avg.
69°
40°
3
Hist. Avg.
68°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Pomeroy
Pomeroy's September 2026 forecast shows daily high temperatures ranging from 63° to 87°, with overnight lows between 37° and 58°. The average high for September is 74° with an average low of 44°. 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 Pomeroy. See also: October | November | December.