S
M
T
W
T
F
S
29
31°
21°
30
32°
24°
1
37°
23°
2
36°
22°
3
36°
16°
4
37°
10°
5
33°
19°
6
32°
17°
7
33°
19°
8
32°
21°
9
34°
21°
10
33°
16°
11
36°
12°
12
24°
18°
13
Hist. Avg.
30°
11°
14
Hist. Avg.
29°
11°
15
Hist. Avg.
29°
11°
16
Hist. Avg.
29°
10°
17
Hist. Avg.
29°
10°
18
Hist. Avg.
28°
10°
19
Hist. Avg.
28°
10°
20
Hist. Avg.
28°
10°
21
Hist. Avg.
28°
9°
22
Hist. Avg.
28°
9°
23
Hist. Avg.
28°
9°
24
Hist. Avg.
27°
9°
25
Hist. Avg.
27°
9°
26
Hist. Avg.
27°
8°
27
Hist. Avg.
27°
8°
28
Hist. Avg.
27°
8°
29
Hist. Avg.
27°
8°
30
Hist. Avg.
27°
8°
31
Hist. Avg.
27°
8°
1
Hist. Avg.
27°
8°
2
Hist. Avg.
26°
8°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Heron Lake
Heron Lake's December 2026 forecast shows daily high temperatures ranging from 24° to 37°, with overnight lows between 10° and 24°. The average high for December is 33° with an average low of 19°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Heron Lake. See also: January | February | March.
