S
M
T
W
T
F
S
30
81°
65°
31
80°
64°
1
81°
60°
2
73°
60°
3
73°
61°
4
74°
57°
5
73°
57°
6
76°
63°
7
79°
63°
8
73°
62°
9
73°
62°
10
76°
61°
11
79°
61°
12
79°
62°
13
78°
62°
14
79°
52°
15
71°
51°
16
69°
52°
17
71°
51°
18
69°
50°
19
68°
51°
20
69°
53°
21
74°
56°
22
75°
57°
23
76°
50°
24
75°
47°
25
69°
48°
26
68°
50°
27
73°
55°
28
73°
55°
29
72°
48°
30
71°
47°
1
66°
45°
2
66°
48°
3
70°
52°
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 66° to 81°, with overnight lows between 45° and 65°. The average high for September is 73° with an average low of 55°. 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.
