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