S
M
T
W
T
F
S
26
53°
37°
27
53°
38°
28
57°
43°
29
59°
44°
30
59°
45°
1
60°
45°
2
60°
44°
3
57°
42°
4
55°
39°
5
54°
39°
6
56°
40°
7
55°
39°
8
56°
39°
9
58°
42°
10
59°
46°
11
63°
47°
12
62°
46°
13
59°
41°
14
58°
45°
15
58°
44°
16
57°
42°
17
57°
41°
18
58°
41°
19
57°
42°
20
57°
42°
21
56°
41°
22
62°
44°
23
60°
45°
24
61°
47°
25
63°
49°
26
63°
49°
27
65°
48°
28
67°
50°
29
67°
50°
30
66°
47°
31
67°
44°
1
65°
47°
2
65°
45°
3
64°
43°
4
65°
50°
5
66°
51°
6
67°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Hemel Hempstead
Hemel Hempstead's May 2026 forecast shows daily high temperatures ranging from 53° to 67°, with overnight lows between 37° and 51°. The average high for May is 60° with an average low of 44°. 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 Hemel Hempstead. See also: June | July | August.
