S
M
T
W
T
F
S
30
88°
71°
31
89°
72°
1
88°
72°
2
87°
70°
3
88°
71°
4
93°
66°
5
94°
67°
6
93°
67°
7
92°
69°
8
96°
71°
9
95°
70°
10
95°
70°
11
94°
64°
12
94°
66°
13
93°
68°
14
92°
66°
15
92°
68°
16
94°
67°
17
88°
66°
18
92°
66°
19
89°
67°
20
85°
66°
21
84°
66°
22
84°
65°
23
85°
65°
24
84°
64°
25
83°
62°
26
83°
58°
27
82°
57°
28
81°
56°
29
82°
61°
30
84°
64°
1
88°
60°
2
91°
55°
3
81°
58°
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 81° to 96°, with overnight lows between 55° and 72°. The average high for September is 89° with an average low of 65°. 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.
