S
M
T
W
T
F
S
26
53°
43°
27
68°
38°
28
63°
42°
29
62°
52°
30
70°
51°
1
63°
45°
2
62°
48°
3
62°
43°
4
76°
49°
5
85°
62°
6
73°
63°
7
65°
50°
8
71°
48°
9
77°
56°
10
77°
55°
11
62°
47°
12
69°
43°
13
77°
54°
14
65°
55°
15
70°
51°
16
84°
53°
17
87°
64°
18
95°
64°
19
99°
72°
20
100°
64°
21
69°
55°
22
61°
53°
23
66°
60°
24
73°
59°
25
71°
58°
26
73°
62°
27
76°
59°
28
75°
59°
29
73°
57°
30
74°
56°
31
79°
61°
1
82°
57°
2
76°
61°
3
73°
61°
4
76°
60°
5
77°
60°
6
76°
62°
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 61° to 100°, with overnight lows between 53° and 72°. The average high for May is 76° 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 Harrington. See also: June | July | August.
