S
M
T
W
T
F
S
30
89°
70°
31
91°
68°
1
95°
67°
2
95°
69°
3
94°
71°
4
93°
71°
5
96°
70°
6
95°
69°
7
83°
71°
8
87°
66°
9
90°
67°
10
89°
68°
11
86°
68°
12
84°
66°
13
86°
66°
14
87°
67°
15
86°
66°
16
85°
62°
17
83°
61°
18
80°
59°
19
79°
58°
20
79°
59°
21
77°
56°
22
82°
60°
23
82°
61°
24
81°
60°
25
82°
60°
26
82°
59°
27
81°
60°
28
82°
60°
29
81°
59°
30
81°
59°
1
80°
58°
2
79°
54°
3
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Buchanan
Buchanan's September 2026 forecast shows daily high temperatures ranging from 72° to 90°, with overnight lows between 51° and 68°. The average high for September is 82° with an average low of 61°. 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 Buchanan. See also: October | November | December.
