S
M
T
W
T
F
S
30
70°
46°
31
70°
47°
1
71°
46°
2
69°
51°
3
71°
45°
4
69°
46°
5
70°
48°
6
68°
49°
7
66°
47°
8
70°
50°
9
72°
44°
10
72°
43°
11
70°
50°
12
72°
49°
13
67°
43°
14
65°
51°
15
70°
52°
16
74°
52°
17
72°
49°
18
71°
41°
19
63°
40°
20
61°
41°
21
60°
43°
22
62°
43°
23
64°
40°
24
60°
41°
25
62°
39°
26
61°
37°
27
61°
39°
28
60°
40°
29
56°
38°
30
58°
43°
1
60°
39°
2
Hist. Avg.
61°
36°
3
Hist. Avg.
61°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Grand View
Grand View's September 2026 forecast shows daily high temperatures ranging from 56° to 74°, with overnight lows between 37° and 52°. The average high for September is 66° with an average low of 45°. 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 Grand View. See also: October | November | December.