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