St. Catharines, Ontario

2026-03-09 20:46

8°C

Feels like 5°C

Partly cloudy

Humidity

65%

Wind

15 km/h NW

Visibility

10 km

Pressure

1013 mb

UV Index

3 — Moderate

Precip

0 mm

Hourly Forecast

Now

-5°C

10:00 p.m.

10°C

11:00 p.m.

-3°C53%

View full hourly forecast →

3-Day Forecast

Today

36%

6°C

1°C

Tomorrow

12°C

-4°C

Wednesday

38%

5°C

-2°C

St. Catharines Weather Tomorrow

Plan your day with the latest St. Catharines, Ontario weather forecast. Current conditions show partly cloudy with a temperature of 8°C (feels like 5°C). Humidity is at 65% with winds from the NW at 15 km/h.

This page is updated every 30 minutes with the latest weather data for St. Catharines. Check the hourly forecast above for a detailed breakdown of today's weather, or view the multi-day forecast to plan ahead.