S
M
T
W
T
F
S
27
24°
2°
28
22°
5°
29
24°
3°
30
23°
8°
31
25°
17°
1
35°
14°
2
35°
8°
3
29°
1°
4
21°
5°
5
26°
14°
6
30°
18°
7
34°
13°
8
37°
0°
9
37°
1°
10
18°
10°
11
23°
5°
12
27°
7°
13
23°
-1°
14
23°
-6°
15
19°
2°
16
19°
10°
17
25°
10°
18
27°
8°
19
35°
-2°
20
35°
-3°
21
15°
7°
22
23°
11°
23
31°
12°
24
34°
15°
25
33°
15°
26
32°
14°
27
35°
13°
28
34°
14°
29
37°
14°
30
31°
11°
31
20°
3°
1
31°
-3°
2
26°
-4°
3
Hist. Avg.
26°
7°
4
Hist. Avg.
26°
7°
5
Hist. Avg.
27°
7°
6
Hist. Avg.
27°
7°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Calais
Calais's January 2027 forecast shows daily high temperatures ranging from 15° to 37°, with overnight lows between -6° and 18°. The average high for January is 28° with an average low of 7°. 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 Calais. See also: February | March | April.