S
M
T
W
T
F
S
26
88°
69°
27
85°
68°
28
87°
69°
29
91°
70°
30
92°
69°
31
91°
69°
1
91°
68°
2
90°
69°
3
90°
66°
4
87°
62°
5
85°
62°
6
84°
61°
7
86°
63°
8
87°
68°
9
89°
69°
10
90°
66°
11
89°
68°
12
84°
66°
13
85°
67°
14
84°
66°
15
Hist. Avg.
85°
64°
16
Hist. Avg.
85°
64°
17
Hist. Avg.
85°
64°
18
Hist. Avg.
85°
64°
19
Hist. Avg.
85°
64°
20
Hist. Avg.
84°
64°
21
Hist. Avg.
84°
64°
22
Hist. Avg.
84°
63°
23
Hist. Avg.
84°
63°
24
Hist. Avg.
84°
63°
25
Hist. Avg.
84°
63°
26
Hist. Avg.
84°
63°
27
Hist. Avg.
84°
62°
28
Hist. Avg.
84°
62°
29
Hist. Avg.
83°
62°
30
Hist. Avg.
83°
62°
31
Hist. Avg.
83°
62°
1
Hist. Avg.
83°
61°
2
Hist. Avg.
83°
61°
3
Hist. Avg.
82°
61°
4
Hist. Avg.
82°
61°
5
Hist. Avg.
82°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Plainfield
Plainfield's August 2026 forecast shows daily high temperatures ranging from 84° to 92°, with overnight lows between 61° and 70°. The average high for August is 88° 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 Plainfield. See also: September | October | November.
