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
77°
53°
8
85°
54°
9
84°
59°
10
69°
55°
11
63°
51°
12
64°
47°
13
71°
47°
14
85°
46°
15
85°
48°
16
91°
56°
17
88°
45°
18
85°
46°
19
81°
45°
20
83°
46°
21
84°
46°
22
90°
47°
23
89°
49°
24
86°
47°
25
84°
43°
26
75°
44°
27
77°
39°
28
77°
38°
29
76°
39°
30
76°
42°
1
79°
43°
2
79°
42°
3
76°
40°
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 64° to 91°, with overnight lows between 38° and 56°. The average high for September is 81° with an average low of 45°. 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.
