S
M
T
W
T
F
S
30
79°
63°
31
77°
62°
1
75°
61°
2
75°
63°
3
77°
63°
4
81°
64°
5
82°
63°
6
83°
64°
7
86°
61°
8
84°
61°
9
84°
48°
10
79°
51°
11
72°
58°
12
76°
60°
13
76°
47°
14
81°
45°
15
69°
46°
16
70°
47°
17
71°
55°
18
70°
57°
19
71°
57°
20
77°
55°
21
79°
57°
22
82°
56°
23
82°
56°
24
80°
55°
25
81°
57°
26
80°
46°
27
80°
43°
28
68°
44°
29
64°
43°
30
65°
46°
1
66°
45°
2
67°
42°
3
69°
44°
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 64° to 86°, with overnight lows between 42° and 64°. The average high for September is 76° with an average low of 54°. 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.
