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St. Catharines Weather Today

Temperature, Feels Like, Rain Chance & Hourly Forecast in St. Catharines

St. Catharines temperature today is 19°, feels like 19°, with a humidity level of 89% and wind at 25.92 km/h. Rain chance today is 2%. Use the hourly forecast and 5-day outlook below to plan your day.

Tomorrow in St. Catharines: expect a high of 18° and a low of 14°, with overcast clouds. Rain chance tomorrow is 100%.

overcast clouds
19°
overcast clouds
H: 20° L: 18°
Feels like 19°
AQI: Good (1/5)
St. Catharines
Weather Updated Oct 1, 2026 7:30 PM
Humidity
89%
Dew 17°
Wind speed
25.92 km/h
SSW
Pressure
1013 hPa
Visibility
10 km
High Winds
Wind speed is 25.92 km/h. Secure loose objects.
High Humidity
Humidity is 89%. May feel uncomfortable.
Weather Summary
Currently in St. Catharines, expect varied conditions with mild temperatures around 19°. Winds are strong winds. High humidity may make it feel uncomfortable.
Thu
overcast clouds
23° 19°
20%
Fri
overcast clouds
18° 14°
100%
Sat
clear sky
15° 13°
13%
Sun
overcast clouds
18° 12°
11%
Mon
light rain
16° 12°
69%
Daily Weather Forecast
Thursday
10/01/2026
overcast clouds
19°
23°
20%
Friday
10/02/2026
overcast clouds
14°
18°
100%
Saturday
10/03/2026
clear sky
13°
15°
13%
Sunday
10/04/2026
overcast clouds
12°
18°
11%
Monday
10/05/2026
light rain
12°
16°
69%
Precipitation Probability
2%
11
0%
14
0%
17
20%
20
10%
23
100%
02
100%
05
100%
08
20%
11
0%
14
0%
17
0%
20
0%
23
0%
02
0%
05
13%
08
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
20°
Thu
11:00
22°
 
23°
 
21°
 
20°
Thu
23:00
18°
 
15°
 
16°
 
17°
Fri
11:00
18°
 
17°
 
15°
 
14°
Fri
23:00
13°
 
14°
 
14°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
07:14
Sunset
Sunset
18:58
Moon Phase
Waning Gibbous (53%)
Timezone: GMT+05:30
Last updated: Oct 1, 2026 7:30 PM · Data refreshes every 5 min
Location Info
Latitude
Latitude
43.166809
Longitude
Longitude
-79.249580
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More about St. Catharines
Content curated by the NearWeather editorial team · Updated periodically
St. Catharines is a city in Ontario, Canada. It is located in the Niagara region, on the north shore of Lake Ontario. The climate in St. Catharines is humid continental, with four distinct seasons. Summers are warm and humid with temperatures ranging from 20 to 30 degrees Celsius (68 to 86 degrees Fahrenheit). Winters are cold and snowy with temperatures ranging from -10 to 0 degrees Celsius (14 to 32 degrees Fahrenheit). Spring and fall are mild with temperatures ranging from 5 to 20 degrees Celsius (41 to 68 degrees Fahrenheit). The average weather year round is mild and humid.
Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about St. Catharines
What is the temperature in St. Catharines right now?

The current temperature in St. Catharines is 19°, and it feels like 19°. Today's high is 20° and the low is 18°.

Will it rain in St. Catharines today?

The chance of rain in St. Catharines today is 2%. Check the hourly forecast above for exact timing.

What is the weather in St. Catharines today?

St. Catharines is experiencing overcast clouds with a temperature of 19°. Humidity is at 89% and wind speed is 25.92 km/h from the SSW.

What is the humidity in St. Catharines today?

Humidity in St. Catharines is 89% right now, with a dew point of 17°. Conditions may feel muggy or uncomfortable.

What is the wind speed in St. Catharines today?

Wind speed in St. Catharines is 25.92 km/h, flowing at 200° SSW wind direction.

What is the 5-day forecast for St. Catharines?

NearWeather provides a detailed 5-day forecast and 48-hour hourly forecast for St. Catharines. Today's high is 20° and low is 18°, with a 2% chance of rain. Scroll up to view the full day-by-day and hourly breakdown.

What does it feel like in St. Catharines today?

It feels like 19° in St. Catharines today, with 98% cloud cover and 10 km visibility.

Weather in St. Catharines
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