S
M
T
W
T
F
S
30
24°
13°
1
27°
13°
2
47°
8°
3
42°
21°
4
36°
13°
5
43°
24°
6
52°
19°
7
37°
27°
8
47°
26°
9
64°
27°
10
54°
37°
11
56°
30°
12
42°
25°
13
28°
10°
14
28°
5°
15
49°
20°
16
59°
19°
17
61°
21°
18
54°
26°
19
50°
12°
20
52°
24°
21
54°
18°
22
64°
33°
23
64°
27°
24
59°
39°
25
61°
44°
26
68°
33°
27
65°
34°
28
56°
13°
29
27°
12°
30
48°
11°
31
61°
21°
1
45°
30°
2
34°
28°
3
45°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in St. George
St. George's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. 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 St. George. See also: January | February | March.
