S
M
T
W
T
F
S
28
80°
61°
29
85°
64°
30
85°
63°
1
90°
67°
2
94°
71°
3
92°
73°
4
87°
70°
5
79°
67°
6
69°
61°
7
64°
58°
8
81°
59°
9
88°
70°
10
84°
67°
11
82°
59°
12
82°
60°
13
85°
66°
14
87°
70°
15
89°
66°
16
82°
64°
17
81°
63°
18
81°
65°
19
82°
62°
20
80°
63°
21
81°
65°
22
79°
62°
23
77°
60°
24
79°
61°
25
76°
60°
26
76°
63°
27
80°
65°
28
76°
66°
29
79°
66°
30
81°
65°
31
80°
66°
1
79°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Jefferson
Jefferson's July 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 59° and 70°. The average high for July is 81° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Jefferson. See also: August | September | October.