S
M
T
W
T
F
S
30
76°
47°
31
85°
53°
1
69°
57°
2
63°
56°
3
60°
54°
4
65°
54°
5
72°
53°
6
64°
56°
7
73°
53°
8
81°
49°
9
87°
52°
10
84°
52°
11
71°
48°
12
67°
53°
13
67°
51°
14
70°
49°
15
71°
50°
16
82°
53°
17
85°
54°
18
80°
53°
19
80°
52°
20
71°
53°
21
76°
52°
22
77°
53°
23
75°
51°
24
74°
51°
25
76°
53°
26
82°
59°
27
67°
45°
28
68°
46°
29
67°
44°
30
67°
46°
1
68°
43°
2
67°
43°
3
66°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Salem
Salem's September 2026 forecast shows daily high temperatures ranging from 66° to 85°, with overnight lows between 42° and 59°. The average high for September is 73° with an average low of 50°. 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 Salem. See also: October | November | December.
