S
M
T
W
T
F
S
29
60°
40°
30
60°
32°
1
46°
28°
2
45°
29°
3
53°
38°
4
55°
37°
5
50°
34°
6
47°
31°
7
44°
25°
8
42°
25°
9
44°
28°
10
47°
33°
11
51°
32°
12
56°
34°
13
51°
35°
14
47°
27°
15
47°
28°
16
45°
28°
17
44°
21°
18
41°
19°
19
40°
16°
20
37°
21°
21
42°
28°
22
47°
24°
23
41°
23°
24
43°
20°
25
41°
25°
26
47°
30°
27
48°
27°
28
45°
24°
29
43°
25°
30
42°
22°
31
44°
17°
1
39°
21°
2
41°
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 37° to 60°, with overnight lows between 16° and 40°. The average high for December is 46° with an average low of 27°. 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.
