S
M
T
W
T
F
S
30
92°
73°
31
90°
73°
1
92°
72°
2
94°
73°
3
95°
73°
4
95°
72°
5
94°
72°
6
94°
73°
7
95°
70°
8
94°
71°
9
95°
70°
10
94°
67°
11
95°
70°
12
94°
67°
13
94°
69°
14
95°
69°
15
95°
67°
16
92°
66°
17
85°
66°
18
85°
65°
19
86°
65°
20
89°
67°
21
92°
66°
22
88°
61°
23
91°
62°
24
89°
63°
25
88°
62°
26
88°
65°
27
90°
62°
28
87°
59°
29
81°
60°
30
80°
57°
1
79°
56°
2
81°
55°
3
81°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in McGregor
McGregor's September 2026 forecast shows daily high temperatures ranging from 79° to 95°, with overnight lows between 55° and 73°. The average high for September is 90° with an average low of 66°. 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 McGregor. See also: October | November | December.
