S
M
T
W
T
F
S
26
82°
64°
27
79°
59°
28
70°
48°
29
66°
43°
30
68°
43°
1
70°
45°
2
72°
45°
3
84°
43°
4
82°
57°
5
66°
50°
6
64°
46°
7
77°
43°
8
86°
46°
9
84°
46°
10
68°
50°
11
79°
43°
12
86°
46°
13
84°
59°
14
91°
61°
15
86°
66°
16
90°
64°
17
88°
72°
18
91°
64°
19
59°
52°
20
63°
54°
21
72°
55°
22
82°
59°
23
79°
61°
24
85°
55°
25
88°
55°
26
86°
59°
27
80°
64°
28
80°
65°
29
84°
66°
30
84°
66°
31
88°
66°
1
90°
61°
2
83°
59°
3
84°
60°
4
86°
61°
5
86°
62°
6
90°
65°
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 80° to 90°, with overnight lows between 59° and 66°. The average high for May is 85° with an average low of 63°. 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.
