S
M
T
W
T
F
S
30
88°
75°
1
87°
74°
2
85°
73°
3
86°
73°
4
88°
76°
5
87°
76°
6
87°
74°
7
86°
73°
8
84°
77°
9
86°
74°
10
82°
73°
11
86°
77°
12
86°
77°
13
86°
74°
14
86°
74°
15
86°
71°
16
86°
73°
17
85°
75°
18
84°
72°
19
86°
72°
20
86°
72°
21
86°
71°
22
84°
75°
23
86°
72°
24
85°
72°
25
83°
67°
26
84°
68°
27
84°
66°
28
84°
64°
29
82°
66°
30
84°
66°
31
84°
69°
1
83°
70°
2
84°
70°
3
85°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in St John
St John'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 John. See also: January | February | March.
