S
M
T
W
T
F
S
26
84°
68°
27
87°
73°
28
86°
73°
29
87°
72°
30
79°
71°
1
72°
58°
2
73°
55°
3
78°
56°
4
79°
59°
5
82°
59°
6
84°
73°
7
78°
72°
8
75°
72°
9
77°
70°
10
83°
70°
11
85°
67°
12
79°
66°
13
87°
68°
14
89°
71°
15
88°
67°
16
87°
73°
17
90°
72°
18
90°
72°
19
89°
74°
20
91°
73°
21
88°
70°
22
87°
74°
23
89°
73°
24
89°
73°
25
87°
72°
26
87°
73°
27
88°
74°
28
86°
74°
29
85°
73°
30
86°
73°
31
87°
72°
1
88°
72°
2
87°
75°
3
88°
74°
4
86°
75°
5
86°
75°
6
88°
76°
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 75° to 91°, with overnight lows between 66° and 76°. The average high for May is 86° with an average low of 72°. 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.
