S
M
T
W
T
F
S
26
87°
77°
27
88°
79°
28
N/A
29
88°
78°
30
88°
78°
1
88°
78°
2
88°
78°
3
88°
79°
4
87°
78°
5
87°
78°
6
88°
78°
7
87°
77°
8
89°
79°
9
90°
78°
10
89°
79°
11
86°
80°
12
86°
80°
13
87°
79°
14
86°
80°
15
86°
80°
16
87°
79°
17
86°
80°
18
86°
80°
19
85°
79°
20
86°
80°
21
86°
80°
22
87°
79°
23
87°
79°
24
86°
80°
25
86°
80°
26
87°
79°
27
86°
80°
28
86°
81°
29
87°
80°
30
86°
81°
31
86°
80°
1
85°
80°
2
86°
81°
3
86°
81°
4
87°
80°
5
86°
80°
6
86°
81°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Capital Hill
Capital Hill's May 2026 forecast shows daily high temperatures ranging from 85° to 90°, with overnight lows between 77° and 81°. The average high for May is 87° with an average low of 79°. 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 Capital Hill. See also: June | July | August.