S
M
T
W
T
F
S
30
79°
50°
31
76°
50°
1
81°
49°
2
82°
49°
3
84°
53°
4
83°
55°
5
84°
51°
6
82°
50°
7
79°
51°
8
80°
52°
9
80°
51°
10
82°
50°
11
82°
45°
12
85°
50°
13
84°
50°
14
86°
51°
15
85°
51°
16
85°
50°
17
84°
50°
18
84°
49°
19
83°
48°
20
82°
47°
21
82°
47°
22
81°
46°
23
82°
47°
24
81°
47°
25
77°
46°
26
76°
45°
27
73°
44°
28
73°
43°
29
76°
44°
30
74°
42°
1
72°
42°
2
72°
43°
3
75°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Junction
Junction's September 2026 forecast shows daily high temperatures ranging from 72° to 86°, with overnight lows between 42° and 55°. The average high for September is 80° with an average low of 48°. 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 Junction. See also: October | November | December.
