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7 Days
14 Days
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°C
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Monthly Historical Averages
Oldcastle, ON
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January
Average Temperature
High
-1°
Feels -5
Low
-7°
Feels -13
Average Precipitation
6 Days
Rain amount
18.5mm
Snow amount
13.6cm
Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
2°
13
5°
14
4°
15
-6°
16
-3°
17
-1°
18
-2°
19
-5°
20
-7°
21
-7°
22
-5°
23
-4°
24
-5°
25
-4°
26
-4°
27
28
29
30
31
Forecast
Monday, January 12, 2026
Day
2°
Feels -3
Wind
28 km/h SW
Gust
42 km/h
Humidity
59%
P.O.P
20%
Night
-1°
Feels -7
Wind
22 km/h SW
Gust
33 km/h
Humidity
86%
P.O.P
20%
Historical Averages
Jan 12
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.