This page presents a long range weather forecast for Saint Catharines in December as well as other months. You can quickly get a brief overview of the weather to expect in December on a daily basis.
The Saint Catharines extended forecast data provided is based on the average values of previous years.
Select a month and click on a day for more information:
Sunday
Dec 1
5° / 2°
Monday
Dec 2
6° / 2°
Tuesday
Dec 3
9° / 2°
Wednesday
Dec 4
4° / 0°
Thursday
Dec 5
4° / 1°
Friday
Dec 6
4° / 2°
Saturday
Dec 7
6° / 3°
Sunday
Dec 8
8° / 3°
Monday
Dec 9
8° / 5°
Tuesday
Dec 10
8° / 2°
Wednesday
Dec 11
4° / 1°
Thursday
Dec 12
4° / 1°
Friday
Dec 13
3° / -1°
Saturday
Dec 14
2° / -1°
Sunday
Dec 15
6° / 2°
Monday
Dec 16
6° / 4°
Tuesday
Dec 17
6° / 4°
Wednesday
Dec 18
5° / -1°
Thursday
Dec 19
1° / -1°
Friday
Dec 20
2° / -1°
Saturday
Dec 21
2° / -1°
Sunday
Dec 22
3° / -1°
Monday
Dec 23
6° / -1°
Tuesday
Dec 24
1° / -1°
Wednesday
Dec 25
3° / 0°
Thursday
Dec 26
3° / 0°
Friday
Dec 27
3° / 0°
Saturday
Dec 28
4° / 2°
Sunday
Dec 29
6° / 3°
Monday
Dec 30
6° / 4°
Tuesday
Dec 31
6° / 3°
Saint Catharines 30 days weather forecast
Check out our estimated 30 days weather forecast for Saint Catharines, this data is based on the average weather in Saint Catharines in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Saint Catharines next to the desired date.