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 29 °C on Monday, while the low is 18 °C on Thursday. There are expected to be 2 sunny days and rain on 4 days this week.

There are currently no weather alerts.

Monday, July 7

- High of 29 °C, low of 21 °C (75% humidity)
- Mostly cloudy with a 100% chance of rain (4 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (24 km/h wind)
- Sunrise at 5:44 AM, sunset at 8:58 PM

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Tuesday, July 8

- High of 24 °C, low of 20 °C (67% humidity)
- Partly cloudy with a 0% chance of snow
- Very high risk of harm from sun exposure (9 UV index)
- Light air (12 km/h wind)
- Sunrise at 5:45 AM, sunset at 8:58 PM

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Wednesday, July 9

- High of 23 °C, low of 19 °C (76% humidity)
- Overcast with a 0% chance of snow
- Very high risk of harm from sun exposure (8 UV index)
- Light air (9 km/h wind)
- Sunrise at 5:46 AM, sunset at 8:57 PM

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Thursday, July 10

- High of 26 °C, low of 18 °C (61% humidity)
- Mostly sunny with a 0% chance of snow
- Very high risk of harm from sun exposure (9 UV index)
- Light air (9 km/h wind)
- Sunrise at 5:46 AM, sunset at 8:57 PM
- Full moon

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Friday, July 11

- High of 26 °C, low of 20 °C (66% humidity)
- Sunny with a 100% chance of rain (3 mm of rain)
- Light air (9 km/h wind)
- Sunrise at 5:47 AM, sunset at 8:56 PM

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Saturday, July 12

- High of 27 °C, low of 21 °C (71% humidity)
- Mostly cloudy with a 100% chance of rain (1 mm of rain)
- Light air (10 km/h wind)
- Sunrise at 5:48 AM, sunset at 8:56 PM

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Sunday, July 13

- High of 27 °C, low of 21 °C (77% humidity)
- Mostly cloudy with a 100% chance of rain (14 mm of rain)
- Light breeze (23 km/h wind)
- Sunrise at 5:49 AM, sunset at 8:55 PM