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