S
M
T
W
T
F
S
30
88°
70°
31
92°
67°
1
94°
69°
2
96°
72°
3
97°
72°
4
96°
73°
5
97°
72°
6
92°
69°
7
82°
69°
8
85°
65°
9
90°
63°
10
93°
67°
11
92°
70°
12
83°
68°
13
89°
67°
14
90°
69°
15
84°
69°
16
89°
65°
17
88°
67°
18
86°
67°
19
82°
64°
20
81°
61°
21
76°
58°
22
76°
57°
23
80°
62°
24
81°
54°
25
81°
61°
26
80°
60°
27
82°
62°
28
83°
63°
29
83°
63°
30
82°
62°
1
82°
62°
2
81°
61°
3
82°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Greer
Greer's September 2026 forecast shows daily high temperatures ranging from 76° to 92°, with overnight lows between 54° and 70°. The average high for September is 83° with an average low of 63°. 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 Greer. See also: October | November | December.
