S
M
T
W
T
F
S
26
85°
56°
27
90°
56°
28
85°
66°
29
89°
63°
30
76°
62°
1
65°
53°
2
71°
43°
3
75°
44°
4
79°
50°
5
79°
58°
6
85°
70°
7
76°
50°
8
75°
51°
9
76°
55°
10
77°
63°
11
78°
62°
12
82°
59°
13
83°
61°
14
82°
60°
15
83°
61°
16
79°
63°
17
80°
62°
18
80°
64°
19
81°
65°
20
79°
65°
21
80°
64°
22
82°
59°
23
79°
59°
24
80°
60°
25
81°
62°
26
81°
61°
27
80°
60°
28
81°
61°
29
82°
66°
30
82°
66°
31
82°
67°
1
83°
67°
2
84°
68°
3
83°
68°
4
83°
67°
5
84°
68°
6
85°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Excel
Excel's May 2026 forecast shows daily high temperatures ranging from 71° to 85°, with overnight lows between 43° and 70°. The average high for May is 80° with an average low of 61°. 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 Excel. See also: June | July | August.