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
62°
49°
13
65°
55°
14
76°
54°
15
66°
50°
16
66°
51°
17
61°
55°
18
64°
55°
19
58°
54°
20
60°
52°
21
59°
52°
22
65°
52°
23
N/A
24
66°
51°
25
N/A
26
76°
44°
27
76°
44°
28
80°
45°
29
85°
47°
30
88°
48°
1
82°
43°
2
80°
45°
3
83°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cave Junction
Cave Junction's September 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 43° and 48°. 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.
