S
M
T
W
T
F
S
26
58°
43°
27
69°
39°
28
60°
43°
29
61°
51°
30
69°
44°
1
67°
37°
2
62°
43°
3
63°
40°
4
77°
42°
5
85°
59°
6
73°
60°
7
65°
49°
8
73°
40°
9
69°
55°
10
83°
48°
11
63°
46°
12
70°
42°
13
77°
55°
14
63°
53°
15
72°
51°
16
84°
49°
17
87°
60°
18
95°
62°
19
97°
66°
20
96°
69°
21
70°
58°
22
61°
50°
23
55°
50°
24
63°
53°
25
75°
61°
26
77°
65°
27
79°
60°
28
80°
52°
29
76°
56°
30
76°
49°
31
73°
48°
1
75°
50°
2
75°
52°
3
76°
54°
4
78°
54°
5
83°
59°
6
84°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ellicott City
Ellicott City's May 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 48° and 65°. The average high for May is 78° 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 Ellicott City. See also: June | July | August.
