S
M
T
W
T
F
S
30
85°
65°
31
82°
67°
1
88°
71°
2
92°
71°
3
88°
66°
4
81°
67°
5
79°
64°
6
77°
58°
7
78°
58°
8
84°
67°
9
87°
70°
10
74°
60°
11
79°
59°
12
81°
64°
13
82°
63°
14
79°
67°
15
80°
64°
16
74°
60°
17
72°
60°
18
68°
54°
19
66°
53°
20
70°
54°
21
69°
53°
22
73°
58°
23
71°
58°
24
75°
57°
25
76°
58°
26
76°
58°
27
75°
57°
28
76°
58°
29
76°
58°
30
75°
57°
1
75°
57°
2
74°
52°
3
72°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Millvale
Millvale's September 2026 forecast shows daily high temperatures ranging from 66° to 87°, with overnight lows between 46° and 70°. The average high for September is 75° with an average low of 59°. 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 Millvale. See also: October | November | December.
