S
M
T
W
T
F
S
26
94°
64°
27
92°
66°
28
79°
57°
29
68°
53°
30
71°
52°
1
70°
51°
2
80°
48°
3
85°
51°
4
94°
58°
5
76°
51°
6
70°
45°
7
79°
51°
8
90°
62°
9
94°
64°
10
82°
53°
11
85°
61°
12
98°
66°
13
98°
68°
14
89°
65°
15
88°
62°
16
90°
63°
17
87°
63°
18
85°
65°
19
90°
72°
20
87°
67°
21
89°
66°
22
83°
66°
23
79°
67°
24
81°
67°
25
82°
68°
26
82°
68°
27
83°
67°
28
83°
68°
29
84°
68°
30
84°
66°
31
85°
66°
1
85°
67°
2
86°
68°
3
86°
70°
4
87°
71°
5
88°
71°
6
87°
70°
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 70° to 98°, with overnight lows between 45° and 72°. The average high for May is 86° with an average low of 65°. 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.
