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 25 °C on Monday, while the low is 6 °C on Monday. There is expected to be 1 sunny day and rain on 5 days this week.

There are currently no weather alerts.

Monday, May 12

- High of 25 °C, low of 6 °C (64% humidity)
- Sunny with a 0% chance of snow
- Very high risk of harm from sun exposure (8 UV index)
- Light air (12 km/h wind)
- Sunrise at 5:56 AM, sunset at 8:30 PM
- Full moon

1 / 6

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Tuesday, May 13

- High of 16 °C, low of 12 °C (97% humidity)
- Overcast with a 100% chance of rain (6 mm of rain)
- Moderate risk of harm from sun exposure (2 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 5:55 AM, sunset at 8:31 PM

2 / 6

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Wednesday, May 14

- High of 19 °C, low of 13 °C (78% humidity)
- Overcast with a 100% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 5:54 AM, sunset at 8:32 PM

3 / 6

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Thursday, May 15

- High of 18 °C, low of 12 °C (81% humidity)
- Mostly cloudy with a 40% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Light air (9 km/h wind)
- Sunrise at 5:53 AM, sunset at 8:33 PM

4 / 6

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Friday, May 16

- High of 20 °C, low of 14 °C (62% humidity)
- Mostly cloudy with a 100% chance of rain (8 mm of rain)
- Gentle breeze (29 km/h wind)
- Sunrise at 5:52 AM, sunset at 8:34 PM

5 / 6

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Saturday, May 17

- High of 17 °C, low of 13 °C (85% humidity)
- Overcast with a 100% chance of rain (5 mm of rain)
- Light breeze (26 km/h wind)
- Sunrise at 5:51 AM, sunset at 8:35 PM

6 / 6

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Sunday, May 18

- High of 13 °C, low of 9 °C (70% humidity)
- Mostly cloudy with a 0% chance of snow
- Light breeze (22 km/h wind)
- Sunrise at 5:50 AM, sunset at 8:36 PM