S
M
T
W
T
F
S
30
91°
67°
31
90°
67°
1
89°
66°
2
86°
64°
3
83°
59°
4
82°
59°
5
82°
65°
6
87°
64°
7
88°
65°
8
87°
64°
9
87°
64°
10
86°
63°
11
84°
57°
12
79°
56°
13
79°
60°
14
82°
62°
15
81°
63°
16
80°
62°
17
82°
61°
18
81°
56°
19
77°
52°
20
76°
53°
21
75°
53°
22
77°
57°
23
79°
59°
24
81°
60°
25
82°
56°
26
81°
51°
27
77°
53°
28
74°
50°
29
72°
49°
30
73°
56°
1
72°
50°
2
72°
49°
3
Hist. Avg.
77°
51°
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 72° to 91°, with overnight lows between 49° and 67°. The average high for September is 81° with an average low of 59°. 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.
