S
M
T
W
T
F
S
26
70°
37°
27
62°
43°
28
60°
46°
29
69°
40°
30
73°
41°
1
74°
46°
2
80°
46°
3
82°
46°
4
84°
47°
5
72°
49°
6
64°
49°
7
67°
52°
8
65°
49°
9
69°
45°
10
70°
49°
11
72°
42°
12
80°
42°
13
65°
54°
14
63°
47°
15
53°
40°
16
58°
42°
17
62°
43°
18
61°
43°
19
61°
45°
20
64°
45°
21
64°
46°
22
62°
47°
23
64°
46°
24
61°
46°
25
63°
46°
26
63°
47°
27
65°
49°
28
66°
45°
29
61°
45°
30
62°
43°
31
67°
47°
1
67°
47°
2
62°
46°
3
61°
43°
4
62°
44°
5
62°
46°
6
63°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Extension
Extension's May 2026 forecast shows daily high temperatures ranging from 53° to 67°, with overnight lows between 40° 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 Extension. See also: June | July | August.
