Weather in St. Catharines, Canada 🇨🇦
Right now St. Catharines is 18°C with clear, feeling like 18°C. The air is at 64% humidity and winds are about 4 km/h, and the UV index is 0 (low). Over the next few days, temperatures in St. Catharines range from about 16°C to 28°C.
Hourly Forecast for St. Catharines
14-Day Forecast for St. Catharines
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Patchy rain nearby
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Additional Forecasts for St. Catharines
Air Quality
Historical Weather
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Best Time to Be Outside in St. Catharines Today
The most comfortable window in St. Catharines today looks like 08:00 to 11:00, when it is around 21°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 18°C (64°F), clear (feels like 18°C).
What's the weather like in St. Catharines right now?
Conditions in St. Catharines right now: Clear, humidity 64%, wind 4 km/h WNW.
What is today's forecast for St. Catharines?
Today in St. Catharines: high 25°C, low 16°C, sunny. Chance of rain: 4%.
What is the 7-day weather forecast for St. Catharines?
Daily highs and lows for St. Catharines:
- 2026-08-04: 25°C / 16°C
- 2026-08-05: 26°C / 18°C
- 2026-08-06: 28°C / 20°C
- 2026-08-07: 25°C / 20°C
- 2026-08-08: 26°C / 20°C
- 2026-08-09: 30°C / 22°C
- 2026-08-10: 24°C / 19°C
Is it going to rain in St. Catharines today?
There is a 4% chance of rain in St. Catharines today.
What is the wind speed in St. Catharines right now?
Wind in St. Catharines is currently 4 km/h (3 mph) from the WNW.
What is the UV index in St. Catharines right now?
The UV index in St. Catharines is currently 0 (low). Sun protection is recommended when the index is 3 or higher.
