S
M
T
W
T
F
S
28
83°
65°
29
88°
65°
30
94°
71°
1
97°
71°
2
99°
70°
3
98°
69°
4
92°
67°
5
90°
65°
6
91°
63°
7
89°
64°
8
89°
65°
9
85°
63°
10
89°
66°
11
89°
66°
12
87°
65°
13
88°
66°
14
88°
66°
15
87°
65°
16
85°
66°
17
86°
66°
18
89°
67°
19
90°
67°
20
90°
66°
21
88°
67°
22
87°
66°
23
89°
67°
24
90°
67°
25
88°
66°
26
88°
66°
27
89°
67°
28
89°
67°
29
90°
66°
30
89°
67°
31
88°
66°
1
85°
66°
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 83° to 99°, with overnight lows between 63° and 71°. The average high for July is 89° with an average low of 66°. 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.
