S
M
T
W
T
F
S
27
81°
62°
28
86°
58°
29
88°
65°
30
89°
70°
1
84°
69°
2
77°
63°
3
69°
59°
4
77°
52°
5
76°
47°
6
75°
51°
7
78°
52°
8
80°
53°
9
75°
49°
10
78°
51°
11
80°
53°
12
73°
48°
13
77°
51°
14
68°
45°
15
66°
47°
16
70°
49°
17
73°
50°
18
75°
52°
19
75°
53°
20
74°
53°
21
75°
51°
22
69°
45°
23
65°
45°
24
70°
50°
25
73°
51°
26
73°
52°
27
72°
50°
28
71°
51°
29
67°
51°
30
72°
50°
31
72°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Harriet
Harriet's October 2026 forecast shows daily high temperatures ranging from 65° to 89°, with overnight lows between 45° and 70°. The average high for October is 74° with an average low of 52°. 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 Harriet. See also: November | December | January.