S
M
T
W
T
F
S
26
75°
52°
27
73°
46°
28
63°
44°
29
66°
51°
30
75°
52°
1
68°
48°
2
66°
46°
3
66°
48°
4
67°
49°
5
71°
53°
6
75°
54°
7
76°
49°
8
71°
53°
9
72°
55°
10
76°
56°
11
77°
57°
12
79°
58°
13
78°
58°
14
79°
56°
15
71°
49°
16
71°
50°
17
72°
50°
18
70°
52°
19
73°
49°
20
69°
53°
21
76°
57°
22
77°
59°
23
78°
60°
24
80°
52°
25
75°
52°
26
73°
53°
27
74°
52°
28
74°
57°
29
80°
57°
30
75°
53°
31
76°
53°
1
74°
61°
2
79°
56°
3
80°
55°
4
77°
55°
5
83°
59°
6
83°
62°
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 63° to 83°, with overnight lows between 44° and 62°. The average high for May is 74° with an average low of 53°. 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.
