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
74°
60°
3
77°
59°
4
81°
64°
5
82°
70°
6
86°
71°
7
83°
62°
8
79°
65°
9
82°
68°
10
87°
70°
11
89°
70°
12
88°
69°
13
89°
71°
14
89°
72°
15
86°
69°
16
84°
71°
17
85°
72°
18
84°
72°
19
84°
71°
20
85°
72°
21
86°
71°
22
89°
67°
23
84°
68°
24
85°
69°
25
84°
72°
26
85°
68°
27
85°
68°
28
86°
69°
29
87°
74°
30
86°
73°
31
87°
74°
1
87°
74°
2
88°
75°
3
88°
75°
4
89°
74°
5
88°
76°
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 74° to 89°, with overnight lows between 59° and 76°. The average high for May is 85° with an average low of 70°. 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.
