S
M
T
W
T
F
S
29
30°
21°
30
31°
23°
1
35°
22°
2
36°
22°
3
36°
15°
4
35°
15°
5
32°
16°
6
31°
17°
7
29°
16°
8
30°
18°
9
33°
19°
10
32°
15°
11
35°
11°
12
23°
16°
13
34°
19°
14
35°
17°
15
Hist. Avg.
25°
8°
16
Hist. Avg.
25°
8°
17
Hist. Avg.
24°
7°
18
Hist. Avg.
24°
7°
19
Hist. Avg.
24°
7°
20
Hist. Avg.
24°
6°
21
Hist. Avg.
24°
6°
22
Hist. Avg.
23°
6°
23
Hist. Avg.
23°
6°
24
Hist. Avg.
23°
5°
25
Hist. Avg.
23°
5°
26
Hist. Avg.
23°
5°
27
Hist. Avg.
22°
5°
28
Hist. Avg.
22°
4°
29
Hist. Avg.
22°
4°
30
Hist. Avg.
22°
4°
31
Hist. Avg.
22°
4°
1
Hist. Avg.
22°
4°
2
Hist. Avg.
22°
4°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in St. Stephen
St. Stephen's December 2026 forecast shows daily high temperatures ranging from 23° to 36°, with overnight lows between 11° and 23°. The average high for December is 32° with an average low of 18°. 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. Stephen. See also: January | February | March.