S
M
T
W
T
F
S
26
70°
54°
27
72°
52°
28
72°
42°
29
84°
55°
30
75°
58°
1
65°
54°
2
56°
44°
3
70°
39°
4
81°
45°
5
83°
49°
6
83°
58°
7
79°
55°
8
72°
50°
9
76°
64°
10
86°
58°
11
76°
53°
12
74°
46°
13
82°
47°
14
78°
53°
15
78°
43°
16
87°
48°
17
92°
60°
18
93°
66°
19
93°
61°
20
92°
63°
21
94°
65°
22
84°
67°
23
75°
66°
24
85°
63°
25
83°
71°
26
90°
71°
27
85°
70°
28
89°
65°
29
84°
66°
30
77°
60°
31
79°
59°
1
81°
59°
2
79°
59°
3
78°
58°
4
78°
58°
5
84°
62°
6
83°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Prospect
Prospect's May 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 58° and 70°. The average high for May is 82° with an average low of 62°. 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 Prospect. See also: June | July | August.
