S
M
T
W
T
F
S
26
57°
42°
27
72°
37°
28
60°
49°
29
60°
54°
30
67°
44°
1
67°
35°
2
60°
39°
3
61°
40°
4
74°
51°
5
84°
64°
6
75°
61°
7
73°
45°
8
64°
46°
9
65°
47°
10
71°
54°
11
71°
50°
12
68°
51°
13
71°
53°
14
74°
56°
15
77°
57°
16
80°
59°
17
81°
60°
18
81°
60°
19
80°
59°
20
81°
61°
21
81°
61°
22
77°
53°
23
72°
52°
24
72°
53°
25
73°
55°
26
75°
55°
27
74°
54°
28
74°
56°
29
75°
54°
30
75°
60°
31
78°
63°
1
81°
63°
2
76°
59°
3
77°
61°
4
82°
64°
5
82°
64°
6
85°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Frederick
Frederick's May 2026 forecast shows daily high temperatures ranging from 60° to 85°, with overnight lows between 39° and 64°. The average high for May is 75° with an average low of 56°. 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 Frederick. See also: June | July | August.
