S
M
T
W
T
F
S
30
71°
49°
31
82°
43°
1
85°
54°
2
65°
52°
3
64°
48°
4
64°
46°
5
72°
50°
6
74°
53°
7
74°
50°
8
70°
49°
9
73°
52°
10
74°
49°
11
79°
52°
12
76°
53°
13
74°
51°
14
75°
46°
15
79°
53°
16
78°
50°
17
66°
45°
18
66°
46°
19
71°
51°
20
66°
48°
21
64°
43°
22
64°
42°
23
70°
48°
24
64°
48°
25
65°
45°
26
72°
48°
27
73°
50°
28
72°
50°
29
62°
44°
30
70°
46°
1
72°
49°
2
63°
49°
3
59°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rathdrum
Rathdrum's September 2026 forecast shows daily high temperatures ranging from 59° to 85°, with overnight lows between 42° and 54°. The average high for September is 70° with an average low of 49°. 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 Rathdrum. See also: October | November | December.
