S
M
T
W
T
F
S
30
86°
66°
31
90°
66°
1
84°
67°
2
84°
70°
3
85°
70°
4
88°
68°
5
89°
66°
6
86°
67°
7
87°
65°
8
84°
64°
9
85°
66°
10
83°
69°
11
88°
64°
12
85°
63°
13
82°
64°
14
83°
67°
15
86°
68°
16
86°
66°
17
85°
62°
18
82°
61°
19
81°
62°
20
81°
65°
21
82°
61°
22
83°
65°
23
84°
64°
24
85°
65°
25
86°
66°
26
85°
58°
27
85°
57°
28
78°
58°
29
79°
58°
30
Hist. Avg.
78°
58°
1
Hist. Avg.
77°
57°
2
Hist. Avg.
77°
57°
3
Hist. Avg.
77°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Salem
Salem's September 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 57° and 70°. The average high for September is 84° with an average low of 64°. 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.
