S
M
T
W
T
F
S
26
65°
52°
27
66°
45°
28
72°
41°
29
76°
51°
30
70°
52°
1
66°
54°
2
58°
43°
3
67°
51°
4
78°
58°
5
81°
61°
6
82°
63°
7
76°
49°
8
69°
47°
9
74°
56°
10
76°
59°
11
75°
59°
12
74°
57°
13
75°
59°
14
76°
55°
15
75°
60°
16
74°
59°
17
74°
61°
18
75°
62°
19
79°
62°
20
81°
61°
21
80°
62°
22
82°
63°
23
82°
64°
24
81°
63°
25
81°
63°
26
77°
64°
27
80°
63°
28
82°
64°
29
80°
64°
30
81°
65°
31
82°
65°
1
80°
64°
2
80°
65°
3
83°
65°
4
77°
64°
5
78°
63°
6
78°
63°
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 58° to 83°, with overnight lows between 43° and 65°. The average high for May is 77° with an average low of 60°. 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.
