St. Catharines, Ontario, Canada Weather Forecast

Today's Weather

Tue, May 19

Windy and warm with variable clouds; a morning shower or two followed by a heavy t-storm this afternoon; thunderstorms can bring localized damaging wind gusts Hi: 84°

Tonight: Breezy this evening; increasing clouds with a couple of showers and a thunderstorm Lo: 55°

Current Weather

5:45 PM

84°F

RealFeel® 82°

Mostly sunny More Details

Looking Ahead

Thunderstorms, some heavy, this afternoon through late tonight

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Clouds

Temperature

Hourly Weather

10-Day Weather Forecast

Today

5/19

84° 55°

A heavy t-storm in the p.m.

Night: A shower and thunderstorm

87%

Wed

5/20

64° 44°

Mostly cloudy and cooler

Partly cloudy

Thu

5/21

57° 40°

Breezy in the morning

Partly cloudy

Fri

5/22

59° 49°

Cool with periods of sun

Occasional rain and drizzle

Sat

5/23

58° 50°

Breezy with periods of rain

Occasional rain and drizzle

92%

Sun

5/24

64° 54°

An afternoon shower possible

Mostly cloudy

30%

Mon

5/25

64° 53°

Remaining cloudy

Partly cloudy

Tue

5/26

70° 55°

Sun through high clouds

Partly cloudy

Wed

5/27

69° 54°

Mostly sunny

Clear

Thu

5/28

71° 54°

Mostly sunny

Mainly clear

Sun & Moon

14 hrs 49 mins

Rise 5:49 AM

Set 8:38 PM

Waxing Crescent

Rise 8:00 AM

Set 12:27 AM

Air Quality

Air Quality Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.