S
M
T
W
T
F
S
30
78°
49°
31
75°
46°
1
69°
45°
2
68°
46°
3
68°
44°
4
69°
46°
5
68°
44°
6
67°
44°
7
70°
45°
8
74°
50°
9
71°
50°
10
66°
48°
11
66°
50°
12
70°
46°
13
71°
49°
14
72°
47°
15
65°
43°
16
65°
44°
17
63°
42°
18
65°
48°
19
70°
49°
20
Hist. Avg.
66°
46°
21
Hist. Avg.
66°
45°
22
Hist. Avg.
65°
45°
23
Hist. Avg.
65°
44°
24
Hist. Avg.
64°
44°
25
Hist. Avg.
64°
44°
26
Hist. Avg.
64°
43°
27
Hist. Avg.
63°
43°
28
Hist. Avg.
63°
42°
29
Hist. Avg.
62°
42°
30
Hist. Avg.
62°
41°
1
Hist. Avg.
61°
41°
2
Hist. Avg.
61°
40°
3
Hist. Avg.
60°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Troy
Troy's September 2026 forecast shows daily high temperatures ranging from 63° to 78°, with overnight lows between 42° and 50°. The average high for September is 69° with an average low of 46°. 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.