S
M
T
W
T
F
S
30
77°
42°
31
68°
44°
1
72°
51°
2
74°
49°
3
72°
45°
4
70°
44°
5
73°
43°
6
66°
43°
7
66°
42°
8
67°
39°
9
65°
45°
10
70°
41°
11
65°
39°
12
63°
39°
13
64°
40°
14
66°
42°
15
68°
36°
16
61°
37°
17
60°
35°
18
59°
36°
19
59°
37°
20
60°
36°
21
63°
39°
22
66°
38°
23
67°
43°
24
67°
38°
25
65°
45°
26
67°
41°
27
66°
33°
28
61°
32°
29
56°
41°
30
59°
42°
1
61°
41°
2
63°
39°
3
61°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Highland Grove
Highland Grove's September 2026 forecast shows daily high temperatures ranging from 56° to 77°, with overnight lows between 32° and 51°. The average high for September is 65° with an average low of 40°. 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 Highland Grove. See also: October | November | December.
