S
M
T
W
T
F
S
30
64°
59°
31
84°
52°
1
84°
55°
2
77°
57°
3
65°
51°
4
64°
53°
5
74°
52°
6
77°
55°
7
84°
60°
8
80°
58°
9
81°
57°
10
76°
54°
11
81°
56°
12
80°
55°
13
78°
54°
14
84°
58°
15
80°
53°
16
71°
51°
17
69°
49°
18
69°
51°
19
67°
48°
20
67°
46°
21
68°
46°
22
66°
47°
23
66°
44°
24
65°
44°
25
66°
43°
26
73°
45°
27
74°
52°
28
73°
52°
29
65°
48°
30
69°
44°
1
72°
48°
2
71°
48°
3
72°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lillooet 1
Lillooet 1's September 2026 forecast shows daily high temperatures ranging from 64° to 84°, with overnight lows between 43° and 60°. The average high for September is 73° with an average low of 51°. 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 Lillooet 1. See also: October | November | December.
