S
M
T
W
T
F
S
30
93°
67°
31
98°
65°
1
100°
71°
2
101°
76°
3
100°
75°
4
101°
75°
5
103°
74°
6
92°
70°
7
89°
63°
8
95°
58°
9
94°
72°
10
82°
69°
11
88°
68°
12
93°
70°
13
90°
66°
14
88°
62°
15
101°
69°
16
100°
75°
17
100°
75°
18
99°
74°
19
100°
73°
20
94°
71°
21
75°
67°
22
72°
59°
23
N/A
24
72°
61°
25
78°
56°
26
74°
61°
27
80°
51°
28
83°
49°
29
85°
48°
30
94°
66°
1
92°
72°
2
73°
57°
3
77°
50°
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 ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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.