S
M
T
W
T
F
S
30
82°
61°
31
84°
61°
1
84°
53°
2
80°
54°
3
83°
59°
4
78°
59°
5
77°
58°
6
76°
57°
7
78°
53°
8
80°
50°
9
76°
50°
10
75°
59°
11
80°
56°
12
81°
58°
13
81°
57°
14
79°
56°
15
80°
58°
16
73°
48°
17
72°
48°
18
72°
47°
19
Hist. Avg.
75°
50°
20
Hist. Avg.
75°
50°
21
Hist. Avg.
75°
50°
22
Hist. Avg.
74°
49°
23
Hist. Avg.
74°
49°
24
Hist. Avg.
74°
49°
25
Hist. Avg.
73°
48°
26
Hist. Avg.
73°
48°
27
Hist. Avg.
72°
48°
28
Hist. Avg.
72°
47°
29
Hist. Avg.
71°
47°
30
Hist. Avg.
71°
46°
1
Hist. Avg.
70°
46°
2
Hist. Avg.
70°
46°
3
Hist. Avg.
70°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sugar Grove
Sugar Grove's September 2026 forecast shows daily high temperatures ranging from 72° to 84°, with overnight lows between 47° and 61°. The average high for September is 79° 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 Sugar Grove. See also: October | November | December.