S
M
T
W
T
F
S
27
34°
10°
28
24°
12°
29
26°
11°
30
25°
6°
31
24°
18°
1
35°
19°
2
37°
13°
3
39°
11°
4
31°
10°
5
22°
17°
6
31°
18°
7
35°
20°
8
38°
11°
9
39°
7°
10
39°
16°
11
32°
10°
12
37°
2°
13
25°
2°
14
18°
-3°
15
17°
1°
16
16°
11°
17
25°
10°
18
27°
16°
19
38°
5°
20
38°
3°
21
24°
6°
22
18°
13°
23
29°
14°
24
32°
15°
25
31°
13°
26
33°
15°
27
32°
16°
28
33°
15°
29
37°
16°
30
37°
15°
31
Hist. Avg.
28°
8°
1
Hist. Avg.
28°
8°
2
Hist. Avg.
28°
8°
3
Hist. Avg.
28°
8°
4
Hist. Avg.
28°
9°
5
Hist. Avg.
28°
9°
6
Hist. Avg.
28°
9°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Saint John
Saint John's January 2027 forecast shows daily high temperatures ranging from 16° to 39°, with overnight lows between -3° and 20°. The average high for January is 30° with an average low of 11°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Saint John. See also: February | March | April.
