S
M
T
W
T
F
S
26
37°
14°
27
38°
18°
28
53°
15°
29
51°
19°
30
59°
24°
1
70°
22°
2
65°
33°
3
77°
31°
4
48°
32°
5
47°
20°
6
56°
12°
7
64°
17°
8
73°
30°
9
63°
26°
10
72°
23°
11
78°
47°
12
74°
38°
13
84°
33°
14
68°
48°
15
64°
37°
16
63°
34°
17
47°
35°
18
46°
30°
19
63°
30°
20
67°
34°
21
63°
40°
22
64°
38°
23
73°
32°
24
83°
52°
25
90°
57°
26
90°
64°
27
87°
64°
28
85°
64°
29
90°
59°
30
78°
56°
31
81°
53°
1
80°
52°
2
81°
52°
3
79°
50°
4
77°
51°
5
78°
54°
6
73°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Outlook
Outlook's May 2026 forecast shows daily high temperatures ranging from 73° to 90°, with overnight lows between 47° and 64°. The average high for May is 82° with an average low of 55°. 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 Outlook. See also: June | July | August.