S
M
T
W
T
F
S
26
88°
70°
27
90°
73°
28
88°
71°
29
88°
68°
30
76°
65°
1
65°
53°
2
73°
51°
3
78°
47°
4
80°
51°
5
83°
57°
6
86°
73°
7
77°
61°
8
69°
63°
9
72°
65°
10
86°
65°
11
81°
67°
12
84°
67°
13
86°
63°
14
88°
62°
15
89°
65°
16
87°
67°
17
89°
69°
18
93°
72°
19
92°
75°
20
86°
73°
21
82°
72°
22
88°
71°
23
84°
70°
24
75°
69°
25
80°
70°
26
82°
72°
27
82°
73°
28
82°
72°
29
86°
70°
30
84°
69°
31
86°
68°
1
87°
70°
2
85°
69°
3
87°
68°
4
86°
69°
5
89°
70°
6
85°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Old Jefferson
Old Jefferson's May 2026 forecast shows daily high temperatures ranging from 75° to 89°, with overnight lows between 68° and 73°. The average high for May is 84° 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 Old Jefferson. See also: June | July | August.
