S
M
T
W
T
F
S
30
88°
63°
31
88°
62°
1
87°
64°
2
87°
59°
3
84°
60°
4
79°
60°
5
78°
52°
6
76°
59°
7
75°
54°
8
77°
59°
9
83°
60°
10
74°
53°
11
72°
57°
12
74°
57°
13
73°
58°
14
76°
59°
15
81°
50°
16
72°
48°
17
71°
47°
18
72°
53°
19
71°
47°
20
73°
55°
21
Hist. Avg.
70°
48°
22
Hist. Avg.
70°
48°
23
Hist. Avg.
69°
48°
24
Hist. Avg.
69°
47°
25
Hist. Avg.
68°
47°
26
Hist. Avg.
68°
47°
27
Hist. Avg.
67°
47°
28
Hist. Avg.
67°
46°
29
Hist. Avg.
67°
46°
30
Hist. Avg.
66°
46°
1
Hist. Avg.
66°
46°
2
Hist. Avg.
65°
45°
3
Hist. Avg.
65°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lillooet
Lillooet's September 2026 forecast shows daily high temperatures ranging from 71° to 88°, with overnight lows between 47° and 64°. The average high for September is 78° with an average low of 56°. 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. See also: October | November | December.
