S
M
T
W
T
F
S
30
69°
50°
31
82°
52°
1
88°
60°
2
78°
60°
3
68°
58°
4
60°
48°
5
72°
51°
6
77°
45°
7
79°
49°
8
84°
50°
9
87°
56°
10
76°
55°
11
75°
42°
12
77°
45°
13
74°
45°
14
70°
46°
15
70°
54°
16
77°
43°
17
78°
43°
18
80°
45°
19
80°
47°
20
83°
49°
21
80°
48°
22
73°
46°
23
71°
45°
24
66°
45°
25
64°
43°
26
67°
45°
27
67°
47°
28
68°
49°
29
66°
47°
30
68°
48°
1
69°
49°
2
55°
37°
3
56°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kamloops 3
Kamloops 3's September 2026 forecast shows daily high temperatures ranging from 55° to 83°, with overnight lows between 37° and 49°. The average high for September is 69° 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 Kamloops 3. See also: October | November | December.