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 33 °C on Monday, while the low is 16 °C on Saturday. There are expected to be 4 sunny days and rain on 1 day this week.

Environment Canada has issued a heat until Monday at 08:04 AM.

Monday, July 28

- High of 33 °C, low of 21 °C (48% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 6:03 AM, sunset at 8:43 PM

1 / 6

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Tuesday, July 29

- High of 28 °C, low of 21 °C (56% humidity)
- Partly cloudy with a 100% chance of rain (5 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (19 km/h wind)
- Sunrise at 6:04 AM, sunset at 8:42 PM

2 / 6

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Wednesday, July 30

- High of 30 °C, low of 21 °C (54% humidity)
- Partly sunny with a 0% chance of snow
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (30 km/h wind)
- Sunrise at 6:05 AM, sunset at 8:41 PM

3 / 6

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Thursday, July 31

- High of 24 °C, low of 19 °C (40% humidity)
- Mostly cloudy with a 0% chance of snow
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (30 km/h wind)
- Sunrise at 6:06 AM, sunset at 8:40 PM

4 / 6

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Friday, August 1

- High of 24 °C, low of 17 °C (49% humidity)
- Mostly sunny with a 0% chance of snow
- Light breeze (21 km/h wind)
- Sunrise at 6:07 AM, sunset at 8:38 PM
- First quarter moon