S
M
T
W
T
F
S
30
79°
42°
31
86°
46°
1
68°
53°
2
61°
53°
3
62°
54°
4
64°
54°
5
71°
55°
6
66°
55°
7
75°
52°
8
82°
48°
9
88°
47°
10
85°
47°
11
73°
41°
12
65°
49°
13
67°
47°
14
72°
44°
15
69°
46°
16
81°
47°
17
83°
47°
18
72°
46°
19
75°
48°
20
78°
50°
21
76°
48°
22
74°
45°
23
71°
47°
24
74°
49°
25
72°
47°
26
74°
44°
27
71°
48°
28
74°
48°
29
73°
51°
30
72°
47°
1
74°
47°
2
61°
48°
3
66°
42°
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 61° to 78°, with overnight lows between 42° and 51°. The average high for September is 72° with an average low of 47°. 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.
