S
M
T
W
T
F
S
26
66°
32°
27
58°
38°
28
56°
45°
29
66°
37°
30
73°
39°
1
70°
44°
2
73°
47°
3
78°
45°
4
80°
48°
5
65°
48°
6
61°
48°
7
63°
48°
8
61°
45°
9
68°
50°
10
69°
47°
11
70°
42°
12
84°
43°
13
60°
51°
14
59°
48°
15
52°
46°
16
58°
42°
17
65°
44°
18
66°
41°
19
63°
49°
20
69°
50°
21
76°
53°
22
77°
54°
23
73°
53°
24
67°
48°
25
62°
45°
26
64°
46°
27
65°
48°
28
65°
46°
29
65°
46°
30
67°
48°
31
73°
50°
1
69°
47°
2
74°
52°
3
74°
52°
4
72°
51°
5
70°
48°
6
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Startup
Startup's May 2026 forecast shows daily high temperatures ranging from 62° to 77°, with overnight lows between 45° and 54°. The average high for May is 69° with an average low of 49°. 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 Startup. See also: June | July | August.
