S
M
T
W
T
F
S
26
61°
44°
27
73°
42°
28
64°
46°
29
66°
50°
30
66°
50°
1
66°
47°
2
63°
52°
3
62°
47°
4
75°
57°
5
85°
63°
6
72°
55°
7
61°
46°
8
64°
49°
9
64°
48°
10
65°
50°
11
66°
48°
12
65°
50°
13
66°
52°
14
67°
52°
15
69°
51°
16
72°
53°
17
75°
52°
18
77°
57°
19
76°
56°
20
76°
58°
21
75°
57°
22
74°
50°
23
70°
49°
24
68°
51°
25
69°
51°
26
70°
53°
27
70°
51°
28
71°
53°
29
70°
52°
30
70°
52°
31
72°
60°
1
77°
60°
2
73°
55°
3
73°
59°
4
78°
61°
5
76°
58°
6
77°
60°
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 61° to 85°, with overnight lows between 46° and 63°. The average high for May is 71° with an average low of 54°. 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.
