S
M
T
W
T
F
S
30
82°
57°
31
81°
55°
1
80°
55°
2
82°
56°
3
81°
53°
4
79°
52°
5
79°
53°
6
80°
55°
7
81°
49°
8
78°
54°
9
79°
51°
10
81°
51°
11
78°
52°
12
77°
50°
13
78°
53°
14
81°
52°
15
83°
55°
16
84°
56°
17
84°
47°
18
82°
45°
19
74°
47°
20
78°
53°
21
82°
51°
22
83°
43°
23
73°
44°
24
72°
43°
25
76°
47°
26
69°
42°
27
75°
49°
28
71°
40°
29
68°
40°
30
Hist. Avg.
72°
39°
1
Hist. Avg.
72°
39°
2
Hist. Avg.
72°
38°
3
Hist. Avg.
71°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Collinston
Collinston's September 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 40° and 57°. The average high for September is 78° with an average low of 50°. 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 Collinston. See also: October | November | December.
