S
M
T
W
T
F
S
27
58°
44°
28
60°
42°
29
59°
43°
30
60°
46°
1
61°
50°
2
67°
50°
3
68°
49°
4
67°
47°
5
66°
46°
6
66°
50°
7
64°
51°
8
65°
50°
9
66°
51°
10
65°
45°
11
57°
45°
12
55°
46°
13
54°
43°
14
54°
46°
15
54°
47°
16
Hist. Avg.
58°
44°
17
Hist. Avg.
58°
44°
18
Hist. Avg.
58°
44°
19
Hist. Avg.
58°
44°
20
Hist. Avg.
57°
43°
21
Hist. Avg.
57°
43°
22
Hist. Avg.
57°
43°
23
Hist. Avg.
56°
43°
24
Hist. Avg.
56°
43°
25
Hist. Avg.
56°
43°
26
Hist. Avg.
55°
42°
27
Hist. Avg.
55°
42°
28
Hist. Avg.
55°
42°
29
Hist. Avg.
55°
42°
30
Hist. Avg.
54°
42°
31
Hist. Avg.
54°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Lummi Island
Lummi Island's October 2026 forecast shows daily high temperatures ranging from 54° to 68°, with overnight lows between 42° and 51°. The average high for October is 61° 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 October weather will actually feel in Lummi Island. See also: November | December | January.