S
M
T
W
T
F
S
26
66°
37°
27
74°
33°
28
71°
40°
29
69°
48°
30
53°
44°
1
58°
42°
2
53°
32°
3
53°
34°
4
70°
37°
5
81°
54°
6
62°
44°
7
56°
33°
8
54°
30°
9
54°
30°
10
64°
43°
11
57°
32°
12
60°
30°
13
58°
40°
14
56°
48°
15
61°
46°
16
77°
41°
17
83°
51°
18
83°
62°
19
89°
67°
20
78°
44°
21
65°
39°
22
66°
42°
23
68°
47°
24
69°
50°
25
72°
52°
26
70°
52°
27
74°
49°
28
76°
52°
29
75°
53°
30
79°
48°
31
72°
51°
1
73°
50°
2
70°
50°
3
69°
49°
4
69°
53°
5
72°
53°
6
75°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Salem
Salem's May 2026 forecast shows daily high temperatures ranging from 65° to 89°, with overnight lows between 39° and 67°. The average high for May is 74° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Salem. See also: June | July | August.
