S
M
T
W
T
F
S
26
57°
47°
27
66°
41°
28
66°
48°
29
61°
54°
30
65°
43°
1
66°
39°
2
58°
44°
3
62°
38°
4
73°
48°
5
81°
53°
6
75°
59°
7
59°
38°
8
68°
49°
9
71°
49°
10
77°
51°
11
63°
40°
12
63°
42°
13
63°
47°
14
67°
46°
15
74°
53°
16
78°
52°
17
73°
51°
18
78°
56°
19
78°
56°
20
76°
50°
21
67°
50°
22
66°
48°
23
67°
49°
24
67°
47°
25
69°
49°
26
70°
51°
27
72°
48°
28
73°
50°
29
76°
52°
30
77°
56°
31
77°
57°
1
71°
57°
2
78°
56°
3
78°
57°
4
79°
58°
5
78°
58°
6
79°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Blacksburg
Blacksburg's May 2026 forecast shows daily high temperatures ranging from 59° to 79°, with overnight lows between 38° and 58°. The average high for May is 72° with an average low of 51°. 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 Blacksburg. See also: June | July | August.