S
M
T
W
T
F
S
30
78°
52°
31
77°
51°
1
75°
52°
2
77°
56°
3
74°
56°
4
75°
55°
5
76°
55°
6
77°
56°
7
78°
52°
8
76°
49°
9
74°
51°
10
75°
50°
11
75°
49°
12
76°
54°
13
75°
55°
14
70°
48°
15
70°
48°
16
Hist. Avg.
72°
50°
17
Hist. Avg.
72°
50°
18
Hist. Avg.
72°
50°
19
Hist. Avg.
71°
49°
20
Hist. Avg.
71°
49°
21
Hist. Avg.
71°
49°
22
Hist. Avg.
70°
48°
23
Hist. Avg.
70°
48°
24
Hist. Avg.
70°
48°
25
Hist. Avg.
70°
47°
26
Hist. Avg.
69°
47°
27
Hist. Avg.
69°
47°
28
Hist. Avg.
69°
46°
29
Hist. Avg.
68°
46°
30
Hist. Avg.
68°
45°
1
Hist. Avg.
68°
45°
2
Hist. Avg.
67°
45°
3
Hist. Avg.
67°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Boone
Boone's September 2026 forecast shows daily high temperatures ranging from 70° to 78°, with overnight lows between 48° and 56°. The average high for September is 75° with an average low of 52°. 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 Boone. See also: October | November | December.