S
M
T
W
T
F
S
26
62°
42°
27
73°
39°
28
62°
40°
29
67°
48°
30
65°
48°
1
66°
40°
2
62°
47°
3
62°
42°
4
74°
44°
5
83°
53°
6
68°
54°
7
66°
47°
8
66°
40°
9
64°
48°
10
76°
49°
11
62°
47°
12
67°
38°
13
73°
52°
14
65°
51°
15
66°
49°
16
82°
45°
17
87°
61°
18
94°
65°
19
95°
70°
20
92°
62°
21
62°
53°
22
68°
53°
23
54°
49°
24
58°
50°
25
74°
55°
26
82°
65°
27
82°
62°
28
80°
54°
29
79°
57°
30
71°
48°
31
70°
51°
1
68°
53°
2
75°
52°
3
74°
55°
4
73°
56°
5
82°
61°
6
83°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Horsham Heights
Horsham Heights's May 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 48° and 65°. The average high for May is 77° with an average low of 56°. 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 Horsham Heights. See also: June | July | August.
