Live Weather & Forecast
Weather in Saint Catharines-Niagara
Ontario, Canada · Real-time conditions & 3-day outlook
6°C
Feels like 2°C
43°F / Feels 36°F
Clear
Saint Catharines-Niagara, Ontario
🌙 Nighttime
Updated: 2026-04-24 23:45
Humidity
82%
Wind
24.8 km/h E
Wind Gust
42.3 km/h
Pressure
1011 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
-2.5°C
Wind Degree
95°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
175.9 μg/m³
NO₂
4.6 μg/m³
O₃
81 μg/m³
SO₂
1.6 μg/m³
PM 2.5
3.8 μg/m³
PM 10
4.1 μg/m³
Today's Hourly Forecast
24-hour breakdown for Saint Catharines-Niagara, Ontario
12 AM
8°
Clear
1 AM
7°
Clear
2 AM
6°
Clear
3 AM
6°
Clear
4 AM
6°
Clear
5 AM
6°
Clear
6 AM
6°
Clear
7 AM
7°
Sunny
8 AM
7°
Sunny
9 AM
8°
Sunny
10 AM
9°
Sunny
11 AM
9°
Overcast
12 PM
11°
Overcast
1 PM
11°
Partly Cloudy
2 PM
12°
Sunny
3 PM
13°
Sunny
4 PM
14°
Sunny
5 PM
14°
Sunny
6 PM
14°
Sunny
7 PM
11°
Sunny
8 PM
10°
Sunny
9 PM
9°
Clear
10 PM
9°
Clear
11 PM
6°
Clear
3-Day Forecast
Daily overview for Saint Catharines-Niagara, Ontario
Today
Sunny
15°
/
6°
🌧️ 0% chance of rain
💧 Avg. humidity: 61%
💨 Max wind: 29.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 5.7
🌅 Sunrise: 06:20 AM
🌇 Sunset: 08:10 PM
🌙 First Quarter
🌑 Moon: 49% lit
Sat, Apr 25
Moderate rain
8°
/
4°
🌧️ 92% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 42.1 km/h
🌧️ Total precip: 18.09 mm
☀️ UV Index: 0.5
🌅 Sunrise: 06:18 AM
🌇 Sunset: 08:11 PM
🌙 Waxing Gibbous
🌑 Moon: 60% lit
Sun, Apr 26
Partly Cloudy
10°
/
5°
🌧️ 0% chance of rain
💧 Avg. humidity: 85%
💨 Max wind: 16.9 km/h
🌧️ Total precip: 0.01 mm
☀️ UV Index: 5.5
🌅 Sunrise: 06:17 AM
🌇 Sunset: 08:12 PM
🌙 Waxing Gibbous
🌑 Moon: 70% lit
Best Time to Visit Saint Catharines-Niagara
Plan your trip to Saint Catharines-Niagara, Canada around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Saint Catharines-Niagara?
Current conditions in Saint Catharines-Niagara: Clear, temperature 6°C, humidity 82%.
What is the best time to visit Saint Catharines-Niagara?
The best time to visit Saint Catharines-Niagara is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Saint Catharines-Niagara?
Saint Catharines-Niagara is located at approximately 43.2° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Saint Catharines-Niagara?
The wettest period in Saint Catharines-Niagara is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Saint Catharines-Niagara?
For visits to Saint Catharines-Niagara during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Saint Catharines-Niagara in?
What are the public holidays in Saint Catharines-Niagara in 2026?
View the 2026 public holidays for Saint Catharines-Niagara on our Holidays page.
What are the GPS coordinates used for the weather forecast in Saint Catharines-Niagara?
The weather forecast for Saint Catharines-Niagara uses coordinates 43.158, -79.2441.
What is the current temperature outside in Saint Catharines-Niagara?
The current outdoor temperature in Saint Catharines-Niagara is 6°C (43°F) with clear.
What is the hourly weather forecast for Saint Catharines-Niagara today?
Today's hour-by-hour weather breakdown for Saint Catharines-Niagara is shown in the Hourly Forecast section above, including temperature, rain chance, and conditions for each hour of the day.
What is the weather in Saint Catharines-Niagara tomorrow hour by hour?
Tomorrow's forecast for Saint Catharines-Niagara shows a high of 8°C and a low of 4°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in Saint Catharines-Niagara?
Rain is not expected in Saint Catharines-Niagara today. Current forecast shows no significant rain probability.
Is it going to rain today in Saint Catharines-Niagara?
No, rain is not forecast for Saint Catharines-Niagara today. Current conditions show clear to partly cloudy skies.