S
M
T
W
T
F
S
26
89°
69°
27
88°
69°
28
88°
70°
29
89°
70°
30
89°
69°
31
93°
70°
1
93°
70°
2
92°
69°
3
90°
68°
4
89°
68°
5
88°
67°
6
89°
70°
7
93°
66°
8
91°
65°
9
89°
65°
10
92°
66°
11
93°
66°
12
92°
67°
13
91°
67°
14
91°
68°
15
90°
69°
16
90°
67°
17
88°
69°
18
92°
69°
19
92°
68°
20
93°
69°
21
92°
67°
22
87°
68°
23
87°
67°
24
88°
64°
25
87°
64°
26
90°
66°
27
91°
65°
28
90°
64°
29
91°
66°
30
91°
65°
31
90°
66°
1
90°
64°
2
86°
63°
3
86°
62°
4
87°
64°
5
87°
66°
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 86° to 93°, with overnight lows between 62° and 70°. The average high for August is 90° with an average low of 67°. 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.
