S
M
T
W
T
F
S
26
63°
49°
27
67°
54°
28
68°
55°
29
70°
54°
30
68°
53°
1
65°
52°
2
68°
51°
3
67°
53°
4
68°
54°
5
71°
59°
6
69°
56°
7
68°
54°
8
73°
57°
9
69°
57°
10
77°
61°
11
79°
60°
12
78°
59°
13
72°
62°
14
80°
61°
15
75°
58°
16
73°
58°
17
74°
62°
18
80°
63°
19
81°
59°
20
80°
55°
21
71°
55°
22
72°
59°
23
72°
57°
24
76°
62°
25
82°
64°
26
83°
65°
27
81°
65°
28
74°
64°
29
75°
66°
30
75°
65°
31
80°
66°
1
85°
65°
2
84°
65°
3
83°
66°
4
84°
67°
5
80°
66°
6
85°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Capitol Hill
Capitol Hill's May 2026 forecast shows daily high temperatures ranging from 63° to 85°, with overnight lows between 49° and 67°. The average high for May is 75° with an average low of 59°. 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 Capitol Hill. See also: June | July | August.
