S
M
T
W
T
F
S
26
94°
64°
27
92°
66°
28
79°
57°
29
68°
53°
30
71°
52°
1
69°
47°
2
79°
52°
3
83°
59°
4
95°
68°
5
89°
53°
6
71°
47°
7
82°
55°
8
92°
60°
9
91°
59°
10
83°
58°
11
89°
59°
12
83°
58°
13
86°
60°
14
73°
56°
15
88°
65°
16
87°
66°
17
89°
67°
18
88°
67°
19
90°
68°
20
90°
68°
21
89°
67°
22
84°
64°
23
85°
67°
24
90°
68°
25
88°
62°
26
81°
59°
27
81°
62°
28
84°
66°
29
85°
69°
30
89°
70°
31
90°
70°
1
91°
69°
2
92°
71°
3
94°
71°
4
93°
70°
5
92°
70°
6
89°
68°
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 69° to 95°, with overnight lows between 47° and 71°. The average high for May is 86° with an average low of 63°. 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.
