S
M
T
W
T
F
S
27
64°
61°
28
72°
55°
29
73°
55°
30
73°
63°
1
68°
45°
2
63°
39°
3
70°
46°
4
68°
45°
5
68°
37°
6
81°
52°
7
75°
46°
8
66°
41°
9
70°
45°
10
88°
55°
11
85°
63°
12
83°
54°
13
65°
47°
14
60°
44°
15
58°
42°
16
55°
34°
17
55°
40°
18
59°
45°
19
63°
47°
20
65°
50°
21
61°
45°
22
61°
45°
23
63°
47°
24
54°
34°
25
60°
38°
26
53°
39°
27
56°
30°
28
45°
29°
29
50°
39°
30
54°
33°
31
56°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Lewiston
Lewiston's October 2026 forecast shows daily high temperatures ranging from 45° to 85°, with overnight lows between 29° and 63°. The average high for October is 60° with an average low of 42°. 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 Lewiston. See also: November | December | January.
