S
M
T
W
T
F
S
26
83°
61°
27
77°
59°
28
68°
52°
29
84°
61°
30
77°
61°
1
68°
56°
2
70°
50°
3
73°
42°
4
81°
45°
5
82°
52°
6
87°
64°
7
77°
61°
8
74°
55°
9
73°
58°
10
84°
59°
11
83°
58°
12
72°
56°
13
82°
53°
14
79°
58°
15
80°
54°
16
87°
66°
17
88°
66°
18
91°
63°
19
86°
67°
20
89°
64°
21
86°
62°
22
86°
61°
23
84°
60°
24
84°
62°
25
84°
61°
26
86°
63°
27
84°
62°
28
86°
59°
29
88°
63°
30
87°
63°
31
88°
62°
1
88°
63°
2
89°
63°
3
89°
64°
4
88°
65°
5
88°
65°
6
89°
64°
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 91°, with overnight lows between 54° and 67°. The average high for May is 87° 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.
