S
M
T
W
T
F
S
30
89°
71°
31
N/A
1
93°
71°
2
93°
74°
3
91°
72°
4
88°
73°
5
92°
71°
6
90°
69°
7
87°
68°
8
90°
70°
9
87°
66°
10
90°
68°
11
90°
66°
12
87°
65°
13
84°
63°
14
85°
62°
15
86°
66°
16
80°
66°
17
80°
65°
18
83°
65°
19
84°
64°
20
78°
64°
21
80°
63°
22
81°
63°
23
82°
62°
24
84°
63°
25
84°
64°
26
83°
62°
27
79°
63°
28
82°
63°
29
80°
62°
30
83°
62°
1
81°
61°
2
79°
61°
3
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Pine Grove
Pine Grove's September 2026 forecast shows daily high temperatures ranging from 78° to 93°, with overnight lows between 60° and 74°. The average high for September is 85° with an average low of 65°. 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 Pine Grove. See also: October | November | December.