S
M
T
W
T
F
S
30
90°
59°
31
91°
59°
1
90°
57°
2
89°
56°
3
91°
59°
4
95°
56°
5
91°
56°
6
92°
58°
7
93°
60°
8
95°
57°
9
92°
60°
10
89°
56°
11
88°
59°
12
92°
58°
13
93°
60°
14
94°
57°
15
93°
58°
16
92°
56°
17
Hist. Avg.
87°
59°
18
Hist. Avg.
87°
59°
19
Hist. Avg.
87°
58°
20
Hist. Avg.
87°
58°
21
Hist. Avg.
86°
57°
22
Hist. Avg.
86°
57°
23
Hist. Avg.
86°
57°
24
Hist. Avg.
86°
56°
25
Hist. Avg.
85°
56°
26
Hist. Avg.
85°
55°
27
Hist. Avg.
85°
55°
28
Hist. Avg.
85°
54°
29
Hist. Avg.
84°
54°
30
Hist. Avg.
84°
54°
1
Hist. Avg.
84°
53°
2
Hist. Avg.
83°
53°
3
Hist. Avg.
83°
52°
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 88° to 95°, with overnight lows between 56° and 60°. The average high for September is 92° with an average low of 58°. 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.