S
M
T
W
T
F
S
26
77°
59°
27
77°
59°
28
79°
57°
29
81°
59°
30
82°
61°
31
84°
63°
1
85°
63°
2
80°
62°
3
81°
56°
4
79°
57°
5
76°
60°
6
75°
56°
7
76°
59°
8
77°
61°
9
79°
62°
10
78°
57°
11
77°
61°
12
Hist. Avg.
80°
59°
13
Hist. Avg.
80°
59°
14
Hist. Avg.
79°
59°
15
Hist. Avg.
79°
59°
16
Hist. Avg.
79°
58°
17
Hist. Avg.
79°
58°
18
Hist. Avg.
79°
58°
19
Hist. Avg.
79°
58°
20
Hist. Avg.
79°
58°
21
Hist. Avg.
79°
58°
22
Hist. Avg.
78°
58°
23
Hist. Avg.
78°
57°
24
Hist. Avg.
78°
57°
25
Hist. Avg.
78°
57°
26
Hist. Avg.
78°
57°
27
Hist. Avg.
78°
57°
28
Hist. Avg.
78°
56°
29
Hist. Avg.
78°
56°
30
Hist. Avg.
77°
56°
31
Hist. Avg.
77°
56°
1
Hist. Avg.
77°
56°
2
Hist. Avg.
77°
55°
3
Hist. Avg.
76°
55°
4
Hist. Avg.
76°
55°
5
Hist. Avg.
76°
55°
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 75° to 85°, with overnight lows between 56° and 63°. The average high for August is 79° with an average low of 60°. 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.