S
M
T
W
T
F
S
30
89°
50°
31
90°
50°
1
91°
51°
2
86°
48°
3
91°
50°
4
92°
50°
5
90°
49°
6
91°
50°
7
90°
49°
8
89°
48°
9
89°
49°
10
88°
48°
11
83°
44°
12
83°
44°
13
82°
42°
14
82°
42°
15
84°
46°
16
85°
48°
17
81°
47°
18
81°
42°
19
82°
45°
20
86°
47°
21
82°
42°
22
81°
45°
23
82°
46°
24
86°
47°
25
88°
45°
26
87°
41°
27
80°
38°
28
77°
36°
29
77°
38°
30
76°
41°
1
78°
40°
2
80°
43°
3
79°
45°
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 92°, with overnight lows between 36° and 51°. The average high for September is 85° 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.
