S
M
T
W
T
F
S
29
47°
33°
30
45°
27°
1
43°
25°
2
42°
25°
3
43°
28°
4
44°
28°
5
45°
29°
6
43°
30°
7
43°
36°
8
44°
37°
9
44°
36°
10
43°
34°
11
44°
33°
12
51°
37°
13
57°
36°
14
56°
36°
15
46°
35°
16
53°
34°
17
48°
30°
18
42°
24°
19
47°
34°
20
54°
33°
21
56°
37°
22
52°
33°
23
55°
32°
24
52°
31°
25
50°
25°
26
46°
29°
27
52°
25°
28
57°
19°
29
44°
23°
30
40°
26°
31
40°
27°
1
45°
29°
2
52°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Hydro
Hydro's December 2026 forecast shows daily high temperatures ranging from 40° to 57°, with overnight lows between 19° and 37°. The average high for December is 48° with an average low of 30°. 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 Hydro. See also: January | February | March.
