S
M
T
W
T
F
S
26
77°
56°
27
79°
55°
28
77°
54°
29
76°
52°
30
73°
55°
1
72°
55°
2
72°
53°
3
70°
49°
4
71°
48°
5
74°
50°
6
77°
53°
7
79°
55°
8
79°
57°
9
80°
56°
10
81°
57°
11
82°
58°
12
82°
59°
13
81°
59°
14
82°
58°
15
75°
53°
16
78°
56°
17
81°
59°
18
78°
58°
19
82°
55°
20
79°
53°
21
78°
54°
22
80°
58°
23
82°
61°
24
79°
62°
25
85°
62°
26
86°
61°
27
86°
62°
28
85°
63°
29
87°
65°
30
87°
63°
31
88°
58°
1
86°
58°
2
87°
62°
3
87°
63°
4
88°
65°
5
87°
65°
6
83°
59°
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 70° to 88°, with overnight lows between 48° and 65°. The average high for May is 80° with an average low of 57°. 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.
