S
M
T
W
T
F
S
26
31°
23°
27
42°
20°
28
50°
13°
29
59°
22°
30
64°
17°
1
79°
32°
2
69°
34°
3
72°
33°
4
43°
31°
5
49°
22°
6
56°
12°
7
72°
23°
8
70°
33°
9
62°
20°
10
76°
26°
11
70°
43°
12
76°
33°
13
87°
41°
14
67°
48°
15
49°
37°
16
49°
34°
17
37°
33°
18
49°
31°
19
64°
36°
20
59°
35°
21
66°
43°
22
69°
31°
23
77°
47°
24
79°
47°
25
86°
45°
26
88°
50°
27
92°
59°
28
97°
63°
29
90°
58°
30
81°
61°
31
75°
56°
1
64°
52°
2
61°
47°
3
64°
49°
4
66°
49°
5
74°
51°
6
80°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Harris
Harris's May 2026 forecast shows daily high temperatures ranging from 61° to 90°, with overnight lows between 47° and 61°. The average high for May is 73° with an average low of 53°. 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 Harris. See also: June | July | August.