S
M
T
W
T
F
S
26
89°
55°
27
90°
55°
28
89°
59°
29
84°
55°
30
89°
50°
31
93°
53°
1
88°
58°
2
79°
55°
3
81°
51°
4
84°
49°
5
90°
49°
6
95°
52°
7
97°
55°
8
94°
62°
9
88°
55°
10
90°
56°
11
89°
55°
12
89°
55°
13
87°
58°
14
N/A
15
90°
62°
16
92°
61°
17
93°
63°
18
93°
58°
19
88°
56°
20
93°
60°
21
92°
59°
22
88°
53°
23
89°
57°
24
90°
56°
25
93°
58°
26
92°
56°
27
89°
57°
28
85°
53°
29
78°
50°
30
80°
51°
31
88°
59°
1
88°
58°
2
88°
58°
3
87°
57°
4
87°
57°
5
86°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Moses Lake
Moses Lake's August 2026 forecast shows daily high temperatures ranging from 78° to 93°, with overnight lows between 50° and 63°. The average high for August is 89° with an average low of 57°. 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 Moses Lake. See also: September | October | November.