S
M
T
W
T
F
S
28
86°
70°
29
83°
67°
30
80°
61°
1
84°
62°
2
81°
65°
3
83°
62°
4
78°
65°
5
82°
66°
6
77°
58°
7
78°
59°
8
78°
62°
9
79°
66°
10
85°
67°
11
84°
67°
12
82°
66°
13
80°
64°
14
82°
66°
15
81°
63°
16
81°
63°
17
82°
64°
18
84°
66°
19
86°
67°
20
83°
63°
21
79°
59°
22
80°
62°
23
84°
66°
24
86°
67°
25
84°
67°
26
81°
66°
27
80°
66°
28
79°
64°
29
82°
68°
30
86°
67°
31
86°
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 77° to 86°, with overnight lows between 58° and 70°. The average high for July is 82° with an average low of 65°. 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.