S
M
T
W
T
F
S
27
74°
53°
28
73°
52°
29
70°
51°
30
72°
49°
1
64°
49°
2
71°
48°
3
68°
49°
4
72°
49°
5
70°
48°
6
69°
49°
7
70°
46°
8
69°
43°
9
57°
45°
10
58°
39°
11
54°
36°
12
54°
34°
13
53°
33°
14
52°
33°
15
54°
41°
16
57°
32°
17
50°
30°
18
50°
35°
19
51°
36°
20
50°
34°
21
51°
39°
22
50°
40°
23
53°
37°
24
55°
38°
25
58°
32°
26
54°
31°
27
45°
33°
28
47°
35°
29
48°
30°
30
49°
28°
31
46°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Heron Lake
Heron Lake's October 2026 forecast shows daily high temperatures ranging from 45° to 74°, with overnight lows between 26° and 53°. The average high for October is 58° with an average low of 40°. 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 Heron Lake. See also: November | December | January.