S
M
T
W
T
F
S
30
83°
67°
31
87°
70°
1
89°
71°
2
95°
71°
3
87°
69°
4
84°
69°
5
82°
67°
6
82°
65°
7
79°
63°
8
76°
63°
9
83°
60°
10
76°
58°
11
72°
58°
12
74°
56°
13
71°
56°
14
70°
54°
15
73°
51°
16
77°
56°
17
75°
56°
18
68°
55°
19
73°
56°
20
74°
55°
21
73°
55°
22
72°
53°
23
69°
53°
24
71°
52°
25
73°
52°
26
73°
48°
27
63°
44°
28
61°
41°
29
62°
44°
30
61°
40°
1
60°
46°
2
63°
50°
3
62°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Union Grove
Union Grove's September 2026 forecast shows daily high temperatures ranging from 60° to 95°, with overnight lows between 40° and 71°. The average high for September is 73° with an average low of 55°. 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 Union Grove. See also: October | November | December.
