S
M
T
W
T
F
S
30
90°
64°
31
N/A
1
94°
70°
2
94°
70°
3
98°
69°
4
93°
66°
5
83°
58°
6
80°
56°
7
83°
57°
8
79°
56°
9
83°
58°
10
83°
55°
11
84°
55°
12
76°
53°
13
77°
51°
14
80°
59°
15
79°
58°
16
74°
58°
17
75°
54°
18
73°
50°
19
73°
51°
20
77°
56°
21
80°
56°
22
80°
55°
23
79°
56°
24
81°
55°
25
79°
53°
26
78°
54°
27
77°
55°
28
78°
54°
29
79°
53°
30
75°
49°
1
71°
47°
2
72°
48°
3
76°
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 71° to 98°, with overnight lows between 47° and 70°. The average high for September is 80° with an average low of 56°. 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.
