S
M
T
W
T
F
S
26
59°
38°
27
66°
42°
28
61°
47°
29
60°
46°
30
60°
45°
1
56°
44°
2
55°
42°
3
54°
41°
4
59°
43°
5
61°
43°
6
62°
44°
7
65°
48°
8
62°
42°
9
63°
41°
10
63°
41°
11
62°
42°
12
64°
44°
13
63°
44°
14
62°
45°
15
62°
43°
16
63°
43°
17
64°
44°
18
65°
45°
19
66°
44°
20
65°
46°
21
66°
45°
22
67°
47°
23
68°
54°
24
73°
55°
25
72°
51°
26
68°
48°
27
69°
48°
28
70°
53°
29
68°
56°
30
69°
56°
31
69°
55°
1
70°
57°
2
72°
57°
3
71°
58°
4
76°
57°
5
78°
51°
6
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Harlemville
Harlemville's May 2026 forecast shows daily high temperatures ranging from 54° to 78°, with overnight lows between 38° and 58°. The average high for May is 65° with an average low of 47°. 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 Harlemville. See also: June | July | August.