S
M
T
W
T
F
S
26
83°
65°
27
82°
64°
28
85°
63°
29
83°
66°
30
88°
66°
31
87°
65°
1
85°
65°
2
84°
64°
3
83°
58°
4
80°
57°
5
79°
57°
6
80°
59°
7
82°
58°
8
86°
63°
9
86°
64°
10
85°
62°
11
85°
60°
12
86°
64°
13
Hist. Avg.
83°
61°
14
Hist. Avg.
83°
61°
15
Hist. Avg.
83°
61°
16
Hist. Avg.
83°
61°
17
Hist. Avg.
83°
60°
18
Hist. Avg.
83°
60°
19
Hist. Avg.
83°
60°
20
Hist. Avg.
82°
60°
21
Hist. Avg.
82°
60°
22
Hist. Avg.
82°
60°
23
Hist. Avg.
82°
60°
24
Hist. Avg.
82°
60°
25
Hist. Avg.
82°
60°
26
Hist. Avg.
82°
60°
27
Hist. Avg.
82°
59°
28
Hist. Avg.
82°
59°
29
Hist. Avg.
81°
59°
30
Hist. Avg.
81°
59°
31
Hist. Avg.
81°
58°
1
Hist. Avg.
81°
58°
2
Hist. Avg.
81°
58°
3
Hist. Avg.
80°
58°
4
Hist. Avg.
80°
58°
5
Hist. Avg.
80°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Jefferson
Jefferson's August 2026 forecast shows daily high temperatures ranging from 79° to 88°, with overnight lows between 57° and 66°. The average high for August is 84° with an average low of 62°. 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.