S
M
T
W
T
F
S
26
55°
38°
27
56°
41°
28
58°
42°
29
61°
45°
30
60°
44°
1
62°
45°
2
62°
46°
3
61°
45°
4
59°
44°
5
59°
44°
6
61°
45°
7
60°
46°
8
63°
44°
9
63°
43°
10
62°
46°
11
63°
42°
12
63°
42°
13
64°
45°
14
62°
43°
15
64°
47°
16
60°
46°
17
64°
49°
18
65°
48°
19
64°
48°
20
64°
49°
21
63°
48°
22
60°
48°
23
60°
48°
24
61°
47°
25
60°
47°
26
61°
45°
27
61°
44°
28
66°
48°
29
64°
45°
30
63°
44°
31
63°
46°
1
64°
43°
2
65°
46°
3
68°
47°
4
69°
49°
5
69°
47°
6
70°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Alconbury
Alconbury's May 2026 forecast shows daily high temperatures ranging from 55° to 70°, with overnight lows between 38° and 49°. The average high for May is 62° with an average low of 45°. 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 Alconbury. See also: June | July | August.