Stacker created the forecast for St. Catharines, Ontario using data from OpenWeather. This week's high is 26 °C on Saturday, while the low is 15 °C on Monday. There is expected to be 1 sunny day and rain on 3 days this week.
There are currently no weather alerts.
Monday, September 14
- High of 22 °C, low of 15 °C (56% humidity)
- Sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (23 km/h wind)
- Sunrise at 6:55 AM, sunset at 7:29 PM
Marian Weyo // Shutterstock
1 / 6Tuesday, September 15
- High of 24 °C, low of 15 °C (50% humidity)
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (23 km/h wind)
- Sunrise at 6:56 AM, sunset at 7:28 PM
STILLFX // Shutterstock
2 / 6Wednesday, September 16
- High of 22 °C, low of 19 °C (67% humidity)
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 6:57 AM, sunset at 7:26 PM
Zyabich // Shutterstock
3 / 6Thursday, September 17
- High of 20 °C, low of 17 °C (85% humidity)
- Overcast with a 100% chance of rain (7 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 6:58 AM, sunset at 7:24 PM
Gary Whitton // Shutterstock
4 / 6Friday, September 18
- High of 21 °C, low of 16 °C (62% humidity)
- Mostly cloudy with a 0% chance of snow
- Light air (12 km/h wind)
- Sunrise at 6:59 AM, sunset at 7:22 PM
- First quarter moon
Deborah Kolb // Shutterstock
5 / 6Saturday, September 19
- High of 26 °C, low of 16 °C (65% humidity)
- Mostly cloudy with a 100% chance of rain (9 mm of rain)
- Gentle breeze (28 km/h wind)
- Sunrise at 7:00 AM, sunset at 7:20 PM
Alex Stemmer // Shutterstock
6 / 6Sunday, September 20
- High of 21 °C, low of 17 °C (79% humidity)
- Overcast with a 100% chance of rain (7 mm of rain)
- Light breeze (22 km/h wind)
- Sunrise at 7:02 AM, sunset at 7:18 PM
