S
M
T
W
T
F
S
26
64°
30°
27
63°
39°
28
54°
39°
29
45°
32°
30
39°
28°
1
39°
27°
2
52°
19°
3
60°
47°
4
59°
35°
5
43°
32°
6
42°
34°
7
42°
33°
8
44°
36°
9
49°
36°
10
43°
40°
11
47°
39°
12
51°
41°
13
53°
43°
14
50°
43°
15
51°
40°
16
48°
47°
17
56°
45°
18
54°
44°
19
55°
47°
20
57°
45°
21
56°
38°
22
52°
38°
23
54°
42°
24
53°
38°
25
54°
38°
26
54°
39°
27
53°
39°
28
54°
40°
29
56°
46°
30
58°
46°
31
57°
47°
1
58°
44°
2
59°
51°
3
63°
51°
4
59°
50°
5
66°
52°
6
64°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Harvey
Harvey's May 2026 forecast shows daily high temperatures ranging from 42° to 66°, with overnight lows between 32° and 52°. The average high for May is 54° with an average low of 42°. 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 Harvey. See also: June | July | August.
