S
M
T
W
T
F
S
26
90°
71°
27
91°
71°
28
92°
70°
29
92°
71°
30
91°
70°
31
91°
70°
1
90°
71°
2
93°
70°
3
90°
69°
4
91°
70°
5
92°
71°
6
92°
71°
7
91°
69°
8
88°
68°
9
91°
68°
10
85°
65°
11
87°
69°
12
89°
68°
13
90°
69°
14
91°
70°
15
90°
69°
16
91°
69°
17
91°
62°
18
88°
60°
19
82°
59°
20
81°
59°
21
81°
60°
22
82°
60°
23
82°
61°
24
83°
60°
25
83°
61°
26
86°
66°
27
87°
58°
28
82°
58°
29
82°
59°
30
85°
62°
31
86°
62°
1
87°
59°
2
81°
58°
3
80°
64°
4
84°
65°
5
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Warrenton
Warrenton's August 2026 forecast shows daily high temperatures ranging from 80° to 93°, with overnight lows between 58° and 71°. The average high for August is 87° with an average low of 65°. 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 Warrenton. See also: September | October | November.
