S
M
T
W
T
F
S
30
82°
58°
31
81°
60°
1
80°
57°
2
81°
59°
3
80°
60°
4
79°
58°
5
79°
58°
6
78°
57°
7
78°
57°
8
77°
56°
9
77°
57°
10
76°
57°
11
79°
56°
12
79°
57°
13
78°
58°
14
78°
56°
15
76°
57°
16
77°
56°
17
76°
56°
18
74°
53°
19
73°
45°
20
68°
50°
21
68°
54°
22
69°
45°
23
68°
45°
24
67°
47°
25
69°
52°
26
72°
49°
27
66°
46°
28
66°
45°
29
65°
45°
30
65°
44°
1
66°
51°
2
67°
51°
3
66°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in South Salem
South Salem's September 2026 forecast shows daily high temperatures ranging from 65° to 82°, with overnight lows between 43° and 60°. The average high for September is 74° with an average low of 53°. 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 South Salem. See also: October | November | December.
