Weather forecast for 10 daysSaint Catharines, Canada

10-day overview

Daily temperatures

Maximum temperature: 19°C.
Coldest day: Tuesday 13°C.

Chance of precipitation

Highest chance: Thursday 29.10. 23%.

Long-term weather forecast

  • Wednesday
  • 21. Oct 2026
  • 16°C
  • 4°C
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 9km/hNE 55°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:38 am EDT
  • Sunset: 6:24 pm EDT
  • ▼
  • Thursday
  • 22. Oct 2026
  • 17°C
  • 6°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Wind: 10km/hNNW 337°
  • Humidity: 73%
  • UV index: 3
  • Sunrise: 7:39 am EDT
  • Sunset: 6:23 pm EDT
  • ▼
  • Friday
  • 23. Oct 2026
  • 14°C
  • 4°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 15km/hENE 75°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 7:40 am EDT
  • Sunset: 6:21 pm EDT
  • ▼
  • Saturday
  • 24. Oct 2026
  • 16°C
  • 7°C
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 8km/hE 87°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:41 am EDT
  • Sunset: 6:20 pm EDT
  • ▼
  • Sunday
  • 25. Oct 2026
  • 19°C
  • 10°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 15km/hSSW 202°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 7:43 am EDT
  • Sunset: 6:18 pm EDT
  • ▼
  • Monday
  • 26. Oct 2026
  • 19°C
  • 10°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 13km/hWSW 238°
  • Humidity: 74%
  • UV index: 3
  • Sunrise: 7:44 am EDT
  • Sunset: 6:17 pm EDT
  • ▼
  • Tuesday
  • 27. Oct 2026
  • 13°C
  • 7°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 17km/hNE 49°
  • Humidity: 72%
  • UV index: 3
  • Sunrise: 7:45 am EDT
  • Sunset: 6:15 pm EDT
  • ▼
  • Wednesday
  • 28. Oct 2026
  • 16°C
  • 9°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 14km/hESE 113°
  • Humidity: 71%
  • UV index: 3
  • Sunrise: 7:47 am EDT
  • Sunset: 6:14 pm EDT
  • ▼
  • Thursday
  • 29. Oct 2026
  • 19°C
  • 10°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0mm
  • Wind: 21km/hSSW 204°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:48 am EDT
  • Sunset: 6:13 pm EDT
  • ▼
  • Friday
  • 30. Oct 2026
  • 17°C
  • 9°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0mm
  • Wind: 20km/hWSW 237°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 7:49 am EDT
  • Sunset: 6:11 pm EDT
  • ▼
A combination of dull and mostly clear weather is forecasted.
Rainfall is not anticipated in Saint Catharines in the upcoming period.
In the coming days, the maximum temperature will range between 13°C and 19°C, while nighttime temperatures are expected to vary from 4°C to 10°C.
Sunday, Monday and next Thursday, with the highest temperature of 19°C, will be the warmest days; with the highest temperature of 13°C, Tuesday will be the coldest day.
Updated: Oct 21, 2026 @ 11:55:58 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

In Saint Catharines, a combination of dull and sun-filled weather is anticipated for the next ten days.

The maximum temperature will range between 13°C and 19°C, while the minimum temperature will be between 4°C and 10°C.

The warmest days will be Sunday, Monday and next Thursday, with a maximum of 19°C. Tuesday will be the coldest day, with a maximum temperature of 13°C.

On Saturday, expect sunny weather with a crisp, clear sky.

On Saturday, the highest temperature will be 16°C, while the lowest temperature will be 7°C.

On Sunday, sunshine will prevail for most of the day.

On Sunday, the maximum temperature will be 19°C, while the minimum temperature will be 10°C.