S
M
T
W
T
F
S
26
64°
39°
27
68°
41°
28
59°
41°
29
63°
39°
30
66°
46°
1
73°
45°
2
70°
46°
3
64°
52°
4
55°
50°
5
61°
46°
6
54°
43°
7
55°
43°
8
61°
43°
9
66°
45°
10
54°
37°
11
50°
36°
12
57°
36°
13
54°
43°
14
54°
41°
15
55°
39°
16
55°
39°
17
59°
43°
18
54°
41°
19
61°
48°
20
64°
46°
21
64°
48°
22
69°
52°
23
67°
48°
24
68°
46°
25
67°
54°
26
80°
58°
27
77°
54°
28
75°
53°
29
70°
51°
30
69°
50°
31
68°
51°
1
67°
50°
2
62°
44°
3
61°
47°
4
62°
46°
5
63°
47°
6
63°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Hertford
Hertford's May 2026 forecast shows daily high temperatures ranging from 61° to 80°, with overnight lows between 44° and 58°. The average high for May is 68° with an average low of 50°. 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 Hertford. See also: June | July | August.
