St. Catharines 7-day Weather Forecast

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St. Catharines 7-day weather forecast

Stacker created the forecast for St. Catharines, Ontario using data from OpenWeather. This week's high is 30 °C on Friday, while the low is 15 °C on Monday. There are expected to be 4 sunny days and rain on 2 days this week.

There are currently no weather alerts.

Monday, August 18

- High of 23 °C, low of 15 °C (48% humidity)
- Fair with a 0% chance of snow
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (26 km/h wind)
- Sunrise at 6:26 AM, sunset at 8:15 PM

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Tuesday, August 19

- High of 24 °C, low of 15 °C (54% humidity)
- Mostly cloudy with a 100% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (23 km/h wind)
- Sunrise at 6:27 AM, sunset at 8:14 PM

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Wednesday, August 20

- High of 23 °C, low of 18 °C (77% humidity)
- Mostly cloudy with a 0% chance of snow
- High risk of harm from sun exposure (5 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 6:28 AM, sunset at 8:12 PM

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Thursday, August 21

- High of 25 °C, low of 18 °C (55% humidity)
- Sunny with a 0% chance of snow
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 6:29 AM, sunset at 8:10 PM

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Friday, August 22

- High of 30 °C, low of 19 °C (44% humidity)
- Sunny with a 0% chance of snow
- Light breeze (20 km/h wind)
- Sunrise at 6:30 AM, sunset at 8:09 PM

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Saturday, August 23

- High of 30 °C, low of 21 °C (46% humidity)
- Mostly cloudy with a 100% chance of rain (2 mm of rain)
- Gentle breeze (29 km/h wind)
- Sunrise at 6:31 AM, sunset at 8:07 PM
- New moon