S
M
T
W
T
F
S
26
59°
37°
27
63°
36°
28
63°
41°
29
63°
39°
30
N/A
1
75°
54°
2
78°
59°
3
69°
55°
4
66°
48°
5
63°
47°
6
58°
44°
7
56°
40°
8
61°
46°
9
65°
49°
10
66°
49°
11
65°
51°
12
68°
53°
13
67°
50°
14
59°
46°
15
59°
44°
16
66°
52°
17
66°
51°
18
61°
49°
19
63°
52°
20
61°
51°
21
61°
49°
22
62°
48°
23
60°
46°
24
60°
47°
25
63°
46°
26
61°
46°
27
61°
48°
28
63°
52°
29
62°
52°
30
64°
47°
31
60°
47°
1
61°
48°
2
62°
47°
3
62°
47°
4
63°
49°
5
63°
48°
6
64°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Horstmar
Horstmar's May 2026 forecast shows daily high temperatures ranging from 56° to 78°, with overnight lows between 40° and 59°. The average high for May is 63° with an average low of 49°. 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 Horstmar. See also: June | July | August.
