S
M
T
W
T
F
S
26
83°
60°
27
87°
64°
28
80°
67°
29
80°
64°
30
70°
62°
1
62°
54°
2
71°
48°
3
75°
44°
4
80°
48°
5
79°
54°
6
74°
66°
7
69°
60°
8
69°
57°
9
71°
62°
10
80°
62°
11
79°
64°
12
81°
62°
13
84°
57°
14
81°
52°
15
85°
62°
16
86°
60°
17
90°
65°
18
91°
65°
19
90°
66°
20
88°
65°
21
87°
64°
22
85°
64°
23
85°
61°
24
86°
62°
25
87°
65°
26
88°
64°
27
85°
66°
28
87°
67°
29
88°
67°
30
85°
66°
31
84°
65°
1
86°
66°
2
87°
67°
3
89°
67°
4
89°
68°
5
90°
68°
6
89°
67°
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 81° to 91°, with overnight lows between 52° and 68°. The average high for May is 87° with an average low of 64°. 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.
