S
M
T
W
T
F
S
30
88°
45°
31
90°
48°
1
89°
45°
2
89°
45°
3
88°
44°
4
86°
43°
5
85°
43°
6
Hist. Avg.
67°
53°
7
Hist. Avg.
67°
53°
8
Hist. Avg.
67°
53°
9
Hist. Avg.
67°
53°
10
Hist. Avg.
67°
53°
11
Hist. Avg.
67°
53°
12
Hist. Avg.
67°
53°
13
Hist. Avg.
67°
53°
14
Hist. Avg.
67°
52°
15
Hist. Avg.
67°
52°
16
Hist. Avg.
67°
52°
17
Hist. Avg.
67°
52°
18
Hist. Avg.
67°
52°
19
Hist. Avg.
67°
52°
20
Hist. Avg.
67°
52°
21
Hist. Avg.
67°
52°
22
Hist. Avg.
67°
52°
23
Hist. Avg.
67°
52°
24
Hist. Avg.
66°
52°
25
Hist. Avg.
66°
51°
26
Hist. Avg.
66°
51°
27
Hist. Avg.
66°
51°
28
Hist. Avg.
66°
51°
29
Hist. Avg.
66°
51°
30
Hist. Avg.
66°
51°
1
Hist. Avg.
65°
51°
2
Hist. Avg.
65°
51°
3
Hist. Avg.
65°
50°
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 85° to 90°, with overnight lows between 43° and 48°. The average high for September is 88° 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.
