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 35 °C on Monday, while the low is 17 °C on Thursday. There are expected to be 3 sunny days and rain on 5 days this week.

Environment Canada has issued a heat until Monday at 09:11 AM.

Monday, June 23

- High of 35 °C, low of 23 °C (69% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (29 km/h wind)
- Sunrise at 5:37 AM, sunset at 9:00 PM

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Tuesday, June 24

- High of 28 °C, low of 21 °C (66% humidity)
- Mostly cloudy with a 100% chance of rain (3 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Light breeze (22 km/h wind)
- Sunrise at 5:38 AM, sunset at 9:00 PM

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Wednesday, June 25

- High of 21 °C, low of 19 °C (77% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Light air (11 km/h wind)
- Sunrise at 5:38 AM, sunset at 9:00 PM
- New moon

3 / 6

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Thursday, June 26

- High of 22 °C, low of 17 °C (76% humidity)
- Mostly cloudy with a 0% chance of snow
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 5:38 AM, sunset at 9:00 PM

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Friday, June 27

- High of 28 °C, low of 18 °C (77% humidity)
- Fair with a 100% chance of rain (6 mm of rain)
- Gentle breeze (30 km/h wind)
- Sunrise at 5:39 AM, sunset at 9:00 PM

5 / 6

Canva

Saturday, June 28

- High of 26 °C, low of 20 °C (61% humidity)
- Overcast with a 100% chance of rain (1 mm of rain)
- Light breeze (18 km/h wind)
- Sunrise at 5:39 AM, sunset at 9:00 PM

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Sunday, June 29

- High of 26 °C, low of 20 °C (78% humidity)
- Fair with a 100% chance of rain (6 mm of rain)
- Light breeze (22 km/h wind)
- Sunrise at 5:40 AM, sunset at 9:00 PM