S
M
T
W
T
F
S
26
68°
48°
27
64°
44°
28
64°
46°
29
65°
44°
30
64°
44°
1
66°
53°
2
74°
53°
3
67°
52°
4
70°
49°
5
66°
45°
6
66°
52°
7
73°
55°
8
76°
56°
9
75°
51°
10
67°
47°
11
67°
50°
12
68°
52°
13
68°
52°
14
69°
56°
15
69°
57°
16
70°
57°
17
77°
58°
18
78°
59°
19
78°
55°
20
70°
52°
21
72°
56°
22
73°
52°
23
71°
52°
24
71°
51°
25
75°
52°
26
73°
52°
27
74°
53°
28
77°
58°
29
81°
60°
30
81°
57°
31
74°
59°
1
74°
61°
2
76°
58°
3
75°
55°
4
78°
63°
5
83°
62°
6
83°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ashburn
Ashburn's May 2026 forecast shows daily high temperatures ranging from 64° to 83°, with overnight lows between 44° and 63°. The average high for May is 72° with an average low of 54°. 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 Ashburn. See also: June | July | August.
