S
M
T
W
T
F
S
30
85°
68°
31
92°
65°
1
94°
69°
2
97°
71°
3
97°
71°
4
96°
71°
5
96°
69°
6
82°
67°
7
84°
60°
8
86°
60°
9
87°
67°
10
87°
69°
11
86°
69°
12
83°
66°
13
87°
67°
14
87°
68°
15
85°
65°
16
82°
65°
17
83°
63°
18
84°
64°
19
80°
61°
20
81°
59°
21
84°
64°
22
83°
63°
23
82°
62°
24
80°
62°
25
81°
61°
26
82°
62°
27
83°
62°
28
82°
61°
29
81°
61°
30
81°
60°
1
80°
60°
2
79°
59°
3
80°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Troy
Troy's September 2026 forecast shows daily high temperatures ranging from 79° to 87°, with overnight lows between 58° and 69°. The average high for September is 83° with an average low of 63°. 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 Troy. See also: October | November | December.