S
M
T
W
T
F
S
30
85°
71°
31
92°
69°
1
96°
71°
2
97°
73°
3
97°
74°
4
96°
73°
5
98°
73°
6
85°
70°
7
86°
63°
8
87°
63°
9
87°
70°
10
87°
71°
11
90°
72°
12
86°
67°
13
89°
66°
14
91°
68°
15
89°
66°
16
84°
64°
17
85°
63°
18
85°
64°
19
82°
63°
20
83°
60°
21
87°
65°
22
86°
64°
23
85°
64°
24
84°
63°
25
84°
63°
26
85°
64°
27
86°
64°
28
85°
63°
29
84°
63°
30
84°
62°
1
83°
62°
2
83°
61°
3
82°
60°
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 82° to 91°, with overnight lows between 60° and 72°. The average high for September is 86° with an average low of 64°. 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.
