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10 day weather forecast for St. Catharines

Sunday, 14th September 2025, at 13:52
today
Partly cloudy
22° 13°
tomorrow
Partly cloudy
23° 13°
Tuesday
Partly cloudy
23° 14°
Wednesday
Cloudy
23° 13°
Thursday
Sunny
26° 17°
Friday
Sunny
19° 14°
Saturday
Sunny
19° 10°
 More Details See
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St. Catharines Weather Pages

St. Catharines weather forecast

The weather forecast for St.

Catharines over the next 5 days indicates comfortable conditions with temperatures ranging from 22 °C to 26 °C, accompanied by a gentle breeze.

Weather today
St. Catharines weather forecast

St. Catharines 14 days weather forecast

This weeks weather in St. Catharines. Click on a date for detailed forecasts
Sun. 14
22°
13°
Partly cloudy
0 mm
Mon. 15
23°
13°
Partly cloudy
0 mm
Tue. 16
23°
14°
Partly cloudy
0 mm
Wed. 17
23°
13°
Cloudy
0 mm
Thu. 18
26°
17°
Sunny
0 mm
Fri. 19
19°
14°
Sunny
0 mm
Sat. 20
19°
10°
Sunny
0 mm
Sun. 21
19°
13°
Sunny
0 mm
Mon. 22
20°
16°
Patchy rain possible
2.2 mm
Tue. 23
20°
17°
Patchy rain possible
4 mm
Wed. 24
20°
17°
Patchy rain possible
2.7 mm
Thu. 25
18°
16°
Moderate rain
6.9 mm
Fri. 26
13°
11°
Sunny
0 mm
Sat. 27
13°
9°
Sunny
0 mm
Further Ahead
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Access St. Catharines weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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St. Catharines long range weather forecast

30 day weather forecast for St. Catharines
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Mist
23°
2
Mist
23°
3
Thundery outbreaks possible
26°
4
Partly cloudy
25°
5
Partly cloudy
27°
6
Overcast
26°
7
Light rain shower
21°
8
Mist
20°
9
Overcast
23°
10
Overcast
20°
11
Overcast
23°
12
Mist
24°
13
Overcast
22°
14
Partly cloudy
22°
15
Partly cloudy
23°
16
Partly cloudy
23°
17
Cloudy
23°
18
Sunny
26°
19
Sunny
19°
20
Sunny
19°
21
Sunny
19°
22
Patchy rain possible
20°
23
Patchy rain possible
20°
24
Patchy rain possible
20°
25
Moderate rain
18°
26
Sunny
13°
27
Sunny
13°
28
Patchy rain possible
19°
29
Overcast
21°
30
Mist
20°
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

The chart displays the expected rainfall values (in mm) over the next 14 days in St. Catharines, highlighting variations in precipitation levels for specific dates. ☔

St. Catharines Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in St. Catharines over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

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Location coordinates 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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