S
M
T
W
T
F
S
30
75°
65°
31
84°
63°
1
80°
58°
2
79°
51°
3
81°
60°
4
81°
58°
5
85°
61°
6
84°
63°
7
79°
64°
8
78°
54°
9
70°
49°
10
81°
55°
11
76°
47°
12
65°
44°
13
64°
51°
14
59°
45°
15
66°
44°
16
67°
45°
17
63°
42°
18
65°
44°
19
64°
45°
20
68°
44°
21
67°
43°
22
69°
51°
23
71°
50°
24
69°
49°
25
67°
48°
26
68°
49°
27
67°
49°
28
68°
48°
29
69°
47°
30
59°
46°
1
57°
43°
2
55°
39°
3
54°
39°
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 54° to 81°, with overnight lows between 39° and 55°. The average high for September is 66° with an average low of 47°. 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.
