S
M
T
W
T
F
S
30
78°
65°
31
86°
71°
1
90°
72°
2
96°
70°
3
89°
66°
4
77°
67°
5
79°
57°
6
77°
59°
7
77°
60°
8
80°
66°
9
90°
64°
10
78°
58°
11
74°
59°
12
80°
61°
13
79°
61°
14
75°
58°
15
76°
58°
16
77°
59°
17
78°
54°
18
71°
58°
19
77°
59°
20
78°
59°
21
77°
58°
22
77°
57°
23
73°
56°
24
71°
56°
25
76°
57°
26
73°
53°
27
65°
50°
28
65°
49°
29
64°
48°
30
64°
45°
1
62°
47°
2
63°
52°
3
69°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Monroe
Monroe's September 2026 forecast shows daily high temperatures ranging from 62° to 90°, with overnight lows between 45° and 67°. The average high for September is 74° with an average low of 57°. 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 Monroe. See also: October | November | December.
