S
M
T
W
T
F
S
30
85°
63°
31
84°
62°
1
83°
61°
2
83°
62°
3
82°
61°
4
84°
64°
5
84°
63°
6
85°
61°
7
81°
56°
8
Hist. Avg.
84°
59°
9
Hist. Avg.
84°
59°
10
Hist. Avg.
83°
58°
11
Hist. Avg.
83°
58°
12
Hist. Avg.
83°
58°
13
Hist. Avg.
82°
57°
14
Hist. Avg.
82°
57°
15
Hist. Avg.
82°
57°
16
Hist. Avg.
81°
56°
17
Hist. Avg.
81°
56°
18
Hist. Avg.
81°
55°
19
Hist. Avg.
80°
55°
20
Hist. Avg.
80°
54°
21
Hist. Avg.
80°
54°
22
Hist. Avg.
79°
54°
23
Hist. Avg.
79°
53°
24
Hist. Avg.
78°
53°
25
Hist. Avg.
78°
52°
26
Hist. Avg.
78°
52°
27
Hist. Avg.
77°
51°
28
Hist. Avg.
77°
51°
29
Hist. Avg.
76°
50°
30
Hist. Avg.
76°
50°
1
Hist. Avg.
76°
50°
2
Hist. Avg.
76°
49°
3
Hist. Avg.
75°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Monroe
Monroe's September 2026 forecast shows daily high temperatures ranging from 81° to 85°, with overnight lows between 56° and 64°. The average high for September is 83° with an average low of 61°. 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.