S
M
T
W
T
F
S
30
96°
69°
31
97°
71°
1
97°
70°
2
96°
69°
3
93°
67°
4
91°
68°
5
92°
69°
6
94°
70°
7
96°
70°
8
97°
69°
9
96°
69°
10
96°
70°
11
95°
69°
12
95°
69°
13
94°
68°
14
92°
64°
15
88°
65°
16
90°
65°
17
93°
67°
18
88°
66°
19
87°
65°
20
91°
66°
21
93°
67°
22
91°
66°
23
90°
61°
24
93°
60°
25
85°
60°
26
87°
58°
27
90°
65°
28
89°
65°
29
91°
64°
30
Hist. Avg.
84°
62°
1
Hist. Avg.
84°
62°
2
Hist. Avg.
84°
62°
3
Hist. Avg.
83°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Buchanan Dam
Buchanan Dam's September 2026 forecast shows daily high temperatures ranging from 85° to 97°, with overnight lows between 58° and 71°. The average high for September is 92° with an average low of 66°. 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 Dam. See also: October | November | December.
