S
M
T
W
T
F
S
30
88°
64°
31
88°
63°
1
91°
58°
2
86°
63°
3
84°
68°
4
84°
64°
5
84°
64°
6
81°
63°
7
79°
66°
8
81°
61°
9
79°
55°
10
79°
59°
11
81°
56°
12
78°
57°
13
69°
59°
14
70°
55°
15
68°
54°
16
73°
53°
17
72°
56°
18
70°
56°
19
69°
53°
20
71°
52°
21
68°
55°
22
72°
58°
23
72°
58°
24
75°
57°
25
71°
56°
26
71°
57°
27
73°
58°
28
73°
58°
29
70°
56°
30
71°
54°
1
61°
48°
2
58°
44°
3
58°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Grant
Grant's September 2026 forecast shows daily high temperatures ranging from 58° to 81°, with overnight lows between 42° and 66°. The average high for September is 72° 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 Grant. See also: October | November | December.
