S
M
T
W
T
F
S
30
86°
66°
31
86°
70°
1
89°
66°
2
90°
65°
3
84°
66°
4
85°
67°
5
86°
69°
6
89°
70°
7
89°
70°
8
88°
69°
9
89°
69°
10
88°
70°
11
89°
69°
12
88°
69°
13
88°
67°
14
89°
66°
15
85°
66°
16
82°
64°
17
83°
63°
18
82°
63°
19
85°
65°
20
86°
67°
21
87°
66°
22
83°
63°
23
83°
65°
24
84°
66°
25
84°
60°
26
85°
64°
27
85°
64°
28
85°
64°
29
85°
64°
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 82° to 90°, with overnight lows between 60° and 70°. The average high for September is 86° with an average low of 66°. 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.
