S
M
T
W
T
F
S
26
91°
63°
27
90°
62°
28
86°
61°
29
83°
53°
30
82°
59°
31
85°
54°
1
80°
52°
2
80°
62°
3
84°
54°
4
80°
62°
5
79°
63°
6
86°
62°
7
Hist. Avg.
85°
58°
8
Hist. Avg.
85°
58°
9
Hist. Avg.
85°
58°
10
Hist. Avg.
85°
57°
11
Hist. Avg.
84°
57°
12
Hist. Avg.
84°
57°
13
Hist. Avg.
84°
57°
14
Hist. Avg.
84°
57°
15
Hist. Avg.
84°
56°
16
Hist. Avg.
83°
56°
17
Hist. Avg.
83°
56°
18
Hist. Avg.
83°
56°
19
Hist. Avg.
82°
56°
20
Hist. Avg.
82°
55°
21
Hist. Avg.
82°
55°
22
Hist. Avg.
82°
55°
23
Hist. Avg.
82°
55°
24
Hist. Avg.
81°
54°
25
Hist. Avg.
81°
54°
26
Hist. Avg.
81°
54°
27
Hist. Avg.
80°
54°
28
Hist. Avg.
80°
53°
29
Hist. Avg.
80°
53°
30
Hist. Avg.
80°
53°
31
Hist. Avg.
79°
53°
1
Hist. Avg.
79°
52°
2
Hist. Avg.
79°
52°
3
Hist. Avg.
78°
52°
4
Hist. Avg.
78°
52°
5
Hist. Avg.
78°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Post Falls
Post Falls's August 2026 forecast shows daily high temperatures ranging from 79° to 91°, with overnight lows between 52° and 63°. The average high for August is 84° with an average low of 59°. 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 Post Falls. See also: September | October | November.
