S
M
T
W
T
F
S
26
76°
43°
27
76°
47°
28
74°
45°
29
74°
45°
30
76°
43°
31
78°
39°
1
78°
41°
2
82°
40°
3
80°
42°
4
79°
45°
5
78°
39°
6
79°
35°
7
82°
33°
8
80°
39°
9
76°
39°
10
77°
42°
11
78°
42°
12
76°
41°
13
66°
44°
14
65°
43°
15
69°
41°
16
72°
39°
17
77°
43°
18
76°
39°
19
75°
43°
20
80°
37°
21
81°
39°
22
75°
42°
23
70°
40°
24
74°
43°
25
74°
38°
26
70°
35°
27
74°
36°
28
76°
37°
29
71°
43°
30
65°
41°
31
65°
37°
1
68°
37°
2
69°
34°
3
71°
37°
4
72°
34°
5
75°
38°
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 ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. 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.
