S
M
T
W
T
F
S
26
78°
61°
27
84°
73°
28
80°
66°
29
67°
56°
30
64°
48°
1
69°
48°
2
72°
44°
3
79°
40°
4
81°
66°
5
81°
59°
6
63°
52°
7
69°
45°
8
79°
57°
9
82°
61°
10
77°
55°
11
79°
56°
12
84°
60°
13
82°
63°
14
85°
59°
15
84°
60°
16
86°
64°
17
80°
57°
18
76°
61°
19
80°
62°
20
80°
61°
21
83°
54°
22
75°
54°
23
76°
56°
24
74°
58°
25
75°
55°
26
75°
55°
27
77°
56°
28
77°
57°
29
78°
60°
30
79°
63°
31
78°
64°
1
79°
63°
2
80°
60°
3
79°
65°
4
82°
65°
5
80°
66°
6
79°
66°
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 63° to 86°, with overnight lows between 45° and 66°. The average high for May is 79° with an average low of 59°. 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.
