S
M
T
W
T
F
S
26
72°
55°
27
73°
54°
28
70°
46°
29
82°
55°
30
75°
57°
1
66°
55°
2
59°
46°
3
70°
45°
4
79°
43°
5
81°
46°
6
82°
59°
7
79°
57°
8
73°
50°
9
75°
57°
10
86°
57°
11
82°
55°
12
72°
45°
13
80°
57°
14
76°
47°
15
79°
55°
16
89°
63°
17
91°
67°
18
90°
67°
19
92°
66°
20
90°
65°
21
87°
65°
22
84°
66°
23
88°
65°
24
88°
66°
25
85°
60°
26
84°
64°
27
86°
63°
28
86°
64°
29
85°
65°
30
86°
65°
31
86°
64°
1
87°
66°
2
87°
66°
3
86°
65°
4
84°
65°
5
85°
67°
6
87°
66°
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 72° to 92°, with overnight lows between 45° and 67°. 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.
