Weather in St. Catharines, Canada 🇨🇦
Right now St. Catharines is 17°C with overcast, feeling like 14°C. The air is at 76% humidity and winds are about 16 km/h, and the UV index is 0 (low). Over the next few days, temperatures in St. Catharines range from about 13°C to 18°C.
Hourly Forecast for St. Catharines
14-Day Forecast for St. Catharines
Overcast
Overcast
Overcast
Overcast
Patchy rain nearby
Light rain shower
Patchy rain nearby
Patchy rain nearby
Sunny
Sunny
Sunny
Overcast
Sunny
Overcast
Additional Forecasts for St. Catharines
Air Quality
Historical Weather
Weather Forecasts for Other Cities in Canada
Best Time to Be Outside in St. Catharines Today
The most comfortable window in St. Catharines today looks like 09:00 to 12:00, when it is around 17°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in St. Catharines
What is the temperature in St. Catharines right now?
The current temperature in St. Catharines is 17°C (62°F), overcast (feels like 14°C).
What's the weather like in St. Catharines right now?
Conditions in St. Catharines right now: Overcast, humidity 76%, wind 16 km/h N.
What is today's forecast for St. Catharines?
Today in St. Catharines: high 18°C, low 16°C, overcast. Chance of rain: 9%.
What is the 7-day weather forecast for St. Catharines?
Daily highs and lows for St. Catharines:
- 2026-09-18: 18°C / 16°C
- 2026-09-19: 18°C / 13°C
- 2026-09-20: 17°C / 13°C
- 2026-09-21: 16°C / 13°C
- 2026-09-22: 16°C / 13°C
- 2026-09-23: 14°C / 11°C
- 2026-09-24: 16°C / 14°C
Is it going to rain in St. Catharines today?
There is a 9% chance of rain in St. Catharines today.
What is the wind speed in St. Catharines right now?
Wind in St. Catharines is currently 16 km/h (10 mph) from the N.
What is the UV index in St. Catharines right now?
The UV index in St. Catharines is currently 0.2 (low). Sun protection is recommended when the index is 3 or higher.
