S
M
T
W
T
F
S
26
61°
37°
27
64°
38°
28
69°
37°
29
75°
42°
30
75°
48°
1
73°
43°
2
73°
42°
3
76°
43°
4
75°
47°
5
73°
42°
6
71°
43°
7
73°
42°
8
74°
43°
9
69°
39°
10
64°
42°
11
64°
36°
12
67°
39°
13
73°
44°
14
75°
45°
15
75°
46°
16
74°
45°
17
66°
39°
18
74°
44°
19
69°
40°
20
69°
45°
21
65°
44°
22
66°
37°
23
67°
39°
24
76°
46°
25
77°
47°
26
76°
46°
27
76°
45°
28
68°
41°
29
73°
39°
30
70°
41°
31
67°
39°
1
68°
39°
2
77°
48°
3
76°
48°
4
69°
47°
5
69°
43°
6
72°
44°
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 61° to 77°, with overnight lows between 36° and 48°. The average high for May is 71° 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 Prospect. See also: June | July | August.
