S
M
T
W
T
F
S
30
85°
55°
31
76°
55°
1
76°
62°
2
82°
56°
3
82°
63°
4
81°
63°
5
85°
54°
6
82°
54°
7
75°
52°
8
75°
52°
9
76°
59°
10
78°
59°
11
80°
52°
12
74°
52°
13
73°
51°
14
74°
59°
15
77°
50°
16
81°
49°
17
72°
48°
18
71°
49°
19
70°
49°
20
71°
50°
21
69°
48°
22
69°
48°
23
71°
49°
24
73°
52°
25
76°
55°
26
76°
54°
27
77°
46°
28
70°
54°
29
69°
54°
30
76°
50°
1
71°
51°
2
70°
49°
3
66°
45°
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 85°, with overnight lows between 45° and 63°. The average high for September is 75° with an average low of 53°. 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.
