S
M
T
W
T
F
S
26
57°
43°
27
73°
43°
28
59°
52°
29
61°
54°
30
70°
46°
1
70°
41°
2
61°
46°
3
66°
39°
4
79°
46°
5
86°
59°
6
72°
55°
7
72°
54°
8
72°
45°
9
70°
55°
10
81°
52°
11
66°
52°
12
73°
45°
13
75°
55°
14
61°
52°
15
72°
52°
16
83°
62°
17
90°
65°
18
99°
71°
19
97°
73°
20
89°
55°
21
68°
48°
22
66°
49°
23
69°
52°
24
72°
57°
25
73°
57°
26
80°
59°
27
79°
58°
28
82°
59°
29
81°
53°
30
82°
58°
31
81°
57°
1
81°
57°
2
78°
58°
3
74°
59°
4
78°
58°
5
77°
55°
6
78°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Harrington
Harrington's May 2026 forecast shows daily high temperatures ranging from 66° to 99°, with overnight lows between 48° and 73°. The average high for May is 80° with an average low of 58°. 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 Harrington. See also: June | July | August.
