S
M
T
W
T
F
S
26
86°
73°
27
88°
74°
28
87°
76°
29
89°
76°
30
89°
75°
31
88°
76°
1
88°
75°
2
89°
76°
3
90°
76°
4
91°
77°
5
92°
76°
6
91°
76°
7
89°
76°
8
89°
75°
9
90°
76°
10
91°
76°
11
89°
75°
12
90°
76°
13
90°
76°
14
91°
75°
15
89°
76°
16
91°
76°
17
93°
74°
18
94°
75°
19
93°
74°
20
94°
75°
21
91°
74°
22
94°
73°
23
94°
71°
24
93°
73°
25
94°
71°
26
93°
70°
27
91°
70°
28
90°
71°
29
92°
70°
30
91°
70°
31
91°
71°
1
92°
70°
2
89°
71°
3
92°
70°
4
92°
73°
5
93°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Old Jefferson
Old Jefferson's August 2026 forecast shows daily high temperatures ranging from 86° to 94°, with overnight lows between 70° and 77°. The average high for August is 91° with an average low of 74°. 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 Old Jefferson. See also: September | October | November.
