S
M
T
W
T
F
S
26
55°
44°
27
69°
38°
28
64°
43°
29
66°
52°
30
71°
51°
1
68°
38°
2
61°
49°
3
64°
39°
4
79°
55°
5
86°
62°
6
78°
59°
7
65°
44°
8
67°
49°
9
67°
49°
10
69°
52°
11
71°
49°
12
68°
52°
13
71°
52°
14
71°
54°
15
75°
53°
16
76°
51°
17
75°
52°
18
78°
57°
19
79°
57°
20
79°
58°
21
78°
57°
22
74°
50°
23
70°
50°
24
70°
51°
25
71°
52°
26
74°
52°
27
72°
51°
28
72°
52°
29
73°
52°
30
73°
57°
31
76°
60°
1
79°
60°
2
75°
58°
3
75°
58°
4
80°
61°
5
82°
61°
6
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Jefferson
Jefferson's May 2026 forecast shows daily high temperatures ranging from 65° to 86°, with overnight lows between 44° and 62°. The average high for May is 74° 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 Jefferson. See also: June | July | August.
