S
M
T
W
T
F
S
30
72°
49°
31
75°
53°
1
77°
54°
2
77°
54°
3
76°
53°
4
76°
53°
5
75°
52°
6
70°
50°
7
73°
50°
8
75°
52°
9
75°
45°
10
73°
46°
11
73°
52°
12
74°
51°
13
74°
51°
14
73°
50°
15
75°
51°
16
68°
50°
17
67°
51°
18
Hist. Avg.
74°
50°
19
Hist. Avg.
73°
50°
20
Hist. Avg.
73°
49°
21
Hist. Avg.
72°
49°
22
Hist. Avg.
72°
48°
23
Hist. Avg.
72°
48°
24
Hist. Avg.
71°
48°
25
Hist. Avg.
71°
47°
26
Hist. Avg.
71°
47°
27
Hist. Avg.
70°
46°
28
Hist. Avg.
70°
46°
29
Hist. Avg.
70°
46°
30
Hist. Avg.
69°
45°
1
Hist. Avg.
69°
45°
2
Hist. Avg.
68°
44°
3
Hist. Avg.
68°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Mill Gap
Mill Gap's September 2026 forecast shows daily high temperatures ranging from 67° to 77°, with overnight lows between 45° and 54°. The average high for September is 74° with an average low of 51°. 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 Mill Gap. See also: October | November | December.
