S
M
T
W
T
F
S
30
77°
51°
31
89°
52°
1
80°
59°
2
75°
57°
3
68°
52°
4
72°
52°
5
74°
49°
6
71°
49°
7
72°
55°
8
76°
49°
9
84°
55°
10
85°
55°
11
73°
52°
12
70°
49°
13
59°
41°
14
69°
43°
15
74°
47°
16
75°
49°
17
77°
51°
18
79°
53°
19
80°
52°
20
79°
53°
21
75°
45°
22
70°
47°
23
70°
48°
24
77°
49°
25
77°
50°
26
75°
48°
27
65°
45°
28
64°
40°
29
62°
37°
30
62°
38°
1
67°
42°
2
70°
43°
3
72°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lapwai
Lapwai's September 2026 forecast shows daily high temperatures ranging from 59° to 85°, with overnight lows between 37° and 55°. The average high for September is 73° with an average low of 47°. 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 Lapwai. See also: October | November | December.
