S
M
T
W
T
F
S
30
80°
50°
31
61°
53°
1
62°
56°
2
58°
55°
3
59°
56°
4
59°
52°
5
66°
48°
6
66°
49°
7
83°
50°
8
93°
53°
9
97°
62°
10
91°
59°
11
82°
46°
12
87°
46°
13
88°
45°
14
88°
44°
15
84°
45°
16
85°
46°
17
84°
48°
18
85°
46°
19
86°
45°
20
84°
44°
21
80°
47°
22
79°
42°
23
81°
44°
24
80°
45°
25
79°
46°
26
78°
46°
27
78°
41°
28
77°
43°
29
76°
39°
30
80°
43°
1
84°
45°
2
84°
45°
3
83°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cave Junction
Cave Junction's September 2026 forecast shows daily high temperatures ranging from 76° to 97°, with overnight lows between 39° and 62°. The average high for September is 84° with an average low of 46°. 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 Cave Junction. See also: October | November | December.
