St. Catharines
10 day weather forecast for St. Catharines
Wednesday, 28th October 2026, at 10:22
Today
14° 8°
Tomorrow
19° 12°
Friday
15° 10°
Saturday
12° 8°
Sunday
14° 10°
Monday
14° 9°
Tuesday
13° 12°
Seemore
St. Catharines Weather Pages
St. Catharines weather forecast
The weather forecast for St.
Catharines over the next 5 days indicates chilly conditions with temperatures ranging from 12 °C to 19 °C.
Light rain is expected on tomorrow.
Wind speeds are expected to be strong, averaging around 23 km/h.
St. Catharines 14 days weather forecast
This weeks weather in St. Catharines. Click on a date for detailed forecasts
Wed. 28
14°
8°
0 mm
Thu. 29
19°
12°
1.2 mm
Fri. 30
15°
10°
0 mm
Sat. 31
12°
8°
0 mm
Sun. 1
14°
10°
0 mm
Mon. 2
14°
9°
0.9 mm
Tue. 3
13°
12°
14.3 mm
Wed. 4
13°
12°
1.3 mm
Thu. 5
15°
12°
18.7 mm
Fri. 6
12°
7°
1.8 mm
Sat. 7
9°
5°
0 mm
Sun. 8
11°
6°
0 mm
Mon. 9
13°
6°
0 mm
Tue. 10
12°
10°
0.2 mm
Further Ahead
You can click on date
Access St. Catharines weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
St. Catharines long range weather forecast
30 day weather forecast for St. Catharines
Important Notice
Our St. Catharines long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.
Rain Forecast for the Next 14 Days in St. Catharines
A total of 38.4 mm is expected over 5 rainy days. The wettest day is Thursday 5, with 18.7 mm. Click a day for details.
St. Catharines Wind Speed Forecast Chart
The windiest day is tomorrow, with winds up to 36 km/h from the SW. The calmest day is Sunday 8. The average daily maximum is 18.9 km/h.
Wed. 28
23 km/h
E · Moderate breeze
Thu. 29
36 km/h
SW · Fresh breeze
Fri. 30
28.8 km/h
NW · Moderate breeze
Sat. 31
17.3 km/h
W · Gentle breeze
Sun. 1
14.4 km/h
E · Gentle breeze
Mon. 2
9.7 km/h
E · Light breeze
Tue. 3
16.6 km/h
SE · Gentle breeze
Wed. 4
14.4 km/h
SE · Gentle breeze
Thu. 5
20.2 km/h
SW · Moderate breeze
Fri. 6
20.9 km/h
NW · Moderate breeze
Sat. 7
18.4 km/h
N · Gentle breeze
Sun. 8
6.5 km/h
W · Light breeze
Mon. 9
19.4 km/h
SW · Gentle breeze
Tue. 10
18.7 km/h
SW · Gentle breeze
CalmLight breezeGentle breezeModerate breezeFresh breeze
Frequently asked questions about the weather in St. Catharines
How warm is it in St. Catharines over the next 14 days?
Over the next two weeks, temperatures in St. Catharines are expected to range from around 5 °C on the coldest nights up to about 19 °C on the warmest days. Use this range to plan what to pack and wear.
Will it rain in St. Catharines in the next two weeks?
Yes - rain is expected on about 5 of the next 14 days in St. Catharines, with roughly 38.4 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.
How windy is it in St. Catharines?
Maximum wind speeds in St. Catharines are forecast to reach about 36 km/h at their peak over the next 14 days.
When is the best time to visit St. Catharines?
For a month-by-month look at temperatures and rainfall, see our best time to visit St. Catharines guide.
How accurate is the 14-day forecast for St. Catharines?
Our St. Catharines forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.
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Where is St. Catharines?Get accurate weather forecasts for St. Catharines, located at latitude 43.171 and longitude -79.243. Stay updated with localized weather information tailored for St. Catharines.
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