S
M
T
W
T
F
S
30
95°
73°
31
94°
75°
1
94°
74°
2
94°
74°
3
97°
75°
4
93°
73°
5
94°
71°
6
93°
73°
7
91°
71°
8
92°
72°
9
91°
68°
10
92°
71°
11
92°
68°
12
92°
71°
13
91°
71°
14
92°
70°
15
92°
71°
16
87°
70°
17
84°
70°
18
82°
69°
19
85°
70°
20
90°
70°
21
90°
69°
22
89°
69°
23
89°
68°
24
90°
69°
25
89°
67°
26
88°
66°
27
89°
68°
28
88°
67°
29
88°
66°
30
87°
66°
1
88°
65°
2
88°
66°
3
87°
65°
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 97°, with overnight lows between 65° and 75°. The average high for September is 90° with an average low of 70°. 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.
