S
M
T
W
T
F
S
30
73°
52°
31
76°
58°
1
73°
59°
2
79°
52°
3
73°
48°
4
70°
49°
5
69°
50°
6
70°
53°
7
75°
56°
8
78°
58°
9
79°
56°
10
77°
51°
11
71°
54°
12
71°
52°
13
73°
47°
14
69°
48°
15
67°
47°
16
68°
46°
17
70°
54°
18
74°
44°
19
67°
48°
20
68°
44°
21
69°
48°
22
67°
52°
23
74°
53°
24
75°
52°
25
73°
52°
26
72°
53°
27
73°
52°
28
75°
48°
29
71°
50°
30
71°
52°
1
73°
48°
2
73°
41°
3
70°
39°
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 67° to 79°, with overnight lows between 39° and 59°. The average high for September is 72° with an average low of 50°. 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.
