S
M
T
W
T
F
S
30
86°
71°
31
88°
72°
1
88°
72°
2
87°
71°
3
80°
69°
4
80°
64°
5
79°
63°
6
79°
63°
7
80°
69°
8
86°
68°
9
81°
64°
10
80°
68°
11
81°
58°
12
77°
60°
13
76°
59°
14
77°
58°
15
76°
61°
16
77°
63°
17
78°
64°
18
80°
58°
19
82°
57°
20
75°
56°
21
74°
55°
22
74°
56°
23
75°
56°
24
78°
57°
25
79°
63°
26
79°
62°
27
74°
60°
28
75°
58°
29
76°
54°
30
78°
53°
1
71°
54°
2
75°
61°
3
74°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Middle River
Middle River's September 2026 forecast shows daily high temperatures ranging from 71° to 88°, with overnight lows between 51° and 72°. The average high for September is 79° 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 Middle River. See also: October | November | December.
