S
M
T
W
T
F
S
30
68°
56°
31
71°
54°
1
70°
54°
2
70°
55°
3
65°
54°
4
68°
53°
5
74°
48°
6
75°
53°
7
69°
53°
8
73°
51°
9
81°
54°
10
73°
51°
11
69°
50°
12
67°
49°
13
68°
51°
14
66°
49°
15
67°
52°
16
70°
49°
17
68°
50°
18
68°
46°
19
63°
45°
20
64°
51°
21
66°
51°
22
62°
48°
23
62°
44°
24
65°
47°
25
68°
50°
26
62°
49°
27
60°
47°
28
60°
44°
29
59°
40°
30
59°
42°
1
64°
47°
2
68°
49°
3
67°
48°
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 59° to 81°, with overnight lows between 40° and 54°. The average high for September is 67° with an average low of 49°. 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.
