S
M
T
W
T
F
S
26
49°
39°
27
47°
38°
28
51°
32°
29
59°
31°
30
56°
33°
1
56°
29°
2
73°
34°
3
73°
46°
4
60°
37°
5
56°
30°
6
55°
36°
7
69°
41°
8
73°
43°
9
71°
44°
10
70°
40°
11
73°
47°
12
76°
46°
13
77°
48°
14
78°
50°
15
79°
51°
16
78°
52°
17
73°
47°
18
76°
52°
19
73°
49°
20
73°
48°
21
68°
45°
22
68°
43°
23
69°
45°
24
71°
45°
25
69°
46°
26
69°
45°
27
70°
46°
28
70°
50°
29
71°
56°
30
72°
51°
31
71°
49°
1
75°
54°
2
79°
58°
3
82°
58°
4
82°
59°
5
83°
60°
6
82°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Hillside
Hillside's May 2026 forecast shows daily high temperatures ranging from 55° to 83°, with overnight lows between 30° and 60°. The average high for May is 72° with an average low of 48°. 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 Hillside. See also: June | July | August.
