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°
65°
9
87°
68°
10
86°
67°
11
84°
62°
12
80°
63°
13
82°
64°
14
85°
63°
15
80°
62°
16
82°
62°
17
80°
63°
18
78°
63°
19
77°
64°
20
79°
62°
21
76°
59°
22
76°
59°
23
77°
60°
24
77°
60°
25
80°
62°
26
81°
64°
27
81°
66°
28
83°
66°
29
83°
65°
30
82°
66°
31
81°
66°
1
81°
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 64° to 87°, with overnight lows between 58° and 68°. The average high for July is 80° with an average low of 63°. 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.