S
M
T
W
T
F
S
30
78°
49°
31
79°
53°
1
80°
50°
2
81°
50°
3
84°
53°
4
82°
52°
5
74°
52°
6
75°
51°
7
80°
51°
8
80°
50°
9
79°
51°
10
80°
51°
11
81°
52°
12
82°
52°
13
83°
49°
14
85°
48°
15
81°
48°
16
80°
47°
17
78°
47°
18
80°
46°
19
80°
47°
20
78°
47°
21
79°
48°
22
80°
48°
23
79°
45°
24
77°
45°
25
77°
42°
26
70°
41°
27
69°
39°
28
68°
38°
29
72°
41°
30
74°
43°
1
73°
36°
2
68°
34°
3
68°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cache Junction
Cache Junction's September 2026 forecast shows daily high temperatures ranging from 68° to 85°, with overnight lows between 34° and 53°. The average high for September is 78° with an average low of 47°. 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 Cache Junction. See also: October | November | December.
