S
M
T
W
T
F
S
30
85°
62°
31
88°
69°
1
92°
70°
2
93°
69°
3
94°
73°
4
86°
69°
5
83°
68°
6
80°
63°
7
82°
59°
8
87°
63°
9
91°
69°
10
83°
67°
11
82°
61°
12
78°
66°
13
88°
63°
14
74°
54°
15
N/A
16
89°
70°
17
85°
67°
18
80°
60°
19
81°
67°
20
78°
65°
21
79°
63°
22
79°
64°
23
78°
61°
24
76°
56°
25
75°
54°
26
74°
53°
27
73°
52°
28
76°
49°
29
77°
55°
30
77°
55°
1
76°
54°
2
76°
53°
3
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Grove City
Grove City's September 2026 forecast shows daily high temperatures ranging from 73° to 89°, with overnight lows between 49° 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 Grove City. See also: October | November | December.
