S
M
T
W
T
F
S
30
87°
47°
31
78°
52°
1
80°
50°
2
79°
47°
3
79°
48°
4
84°
50°
5
82°
47°
6
78°
45°
7
78°
45°
8
77°
44°
9
75°
45°
10
75°
45°
11
74°
47°
12
76°
49°
13
80°
50°
14
81°
48°
15
82°
51°
16
83°
49°
17
82°
42°
18
73°
41°
19
72°
41°
20
75°
46°
21
80°
43°
22
76°
45°
23
76°
50°
24
77°
46°
25
70°
41°
26
69°
46°
27
69°
41°
28
67°
38°
29
65°
45°
30
66°
49°
1
67°
50°
2
70°
38°
3
71°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Moses Lake
Moses Lake's September 2026 forecast shows daily high temperatures ranging from 65° to 87°, with overnight lows between 35° and 52°. The average high for September is 76° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Moses Lake. See also: October | November | December.
