S
M
T
W
T
F
S
26
78°
63°
27
80°
64°
28
81°
65°
29
74°
62°
30
74°
57°
31
77°
54°
1
73°
65°
2
73°
64°
3
77°
62°
4
75°
61°
5
76°
62°
6
78°
61°
7
78°
60°
8
80°
62°
9
81°
61°
10
78°
61°
11
81°
61°
12
79°
59°
13
76°
60°
14
79°
57°
15
79°
57°
16
77°
56°
17
83°
60°
18
84°
61°
19
84°
61°
20
85°
60°
21
83°
60°
22
83°
59°
23
82°
60°
24
84°
60°
25
84°
59°
26
83°
60°
27
82°
60°
28
82°
59°
29
80°
58°
30
82°
59°
31
82°
59°
1
81°
58°
2
82°
58°
3
80°
55°
4
75°
54°
5
76°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Jefferson
Jefferson's August 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 52° and 65°. The average high for August is 80° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Jefferson. See also: September | October | November.
