S
M
T
W
T
F
S
30
86°
64°
31
87°
65°
1
87°
66°
2
86°
63°
3
90°
68°
4
90°
63°
5
87°
67°
6
90°
67°
7
86°
66°
8
87°
66°
9
89°
67°
10
84°
66°
11
88°
65°
12
87°
66°
13
87°
65°
14
86°
65°
15
87°
64°
16
87°
65°
17
86°
61°
18
85°
61°
19
83°
59°
20
84°
57°
21
79°
57°
22
77°
61°
23
81°
60°
24
84°
59°
25
84°
60°
26
82°
60°
27
83°
59°
28
83°
59°
29
82°
58°
30
82°
58°
1
80°
57°
2
82°
58°
3
Hist. Avg.
80°
55°
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 77° to 90°, with overnight lows between 57° and 68°. The average high for September is 85° with an average low of 62°. 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.
