S
M
T
W
T
F
S
27
65°
52°
28
66°
51°
29
67°
51°
30
65°
50°
1
64°
50°
2
64°
50°
3
65°
51°
4
65°
50°
5
64°
49°
6
65°
49°
7
65°
48°
8
64°
49°
9
63°
48°
10
64°
48°
11
63°
47°
12
64°
48°
13
63°
49°
14
61°
49°
15
62°
48°
16
63°
48°
17
62°
47°
18
61°
47°
19
60°
48°
20
59°
46°
21
59°
42°
22
58°
46°
23
58°
46°
24
57°
45°
25
57°
45°
26
55°
37°
27
56°
37°
28
50°
38°
29
49°
37°
30
49°
41°
31
48°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Letter
Letter's October 2026 forecast shows daily high temperatures ranging from 48° to 67°, with overnight lows between 36° and 52°. The average high for October is 61° 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 October weather will actually feel in Letter. See also: November | December | January.