St. Catharines, Ontario, Canada Weather Forecast

Today's Weather

Thu, Jul 9

Humid with some sun; a morning shower followed by a thunderstorm in spots this afternoon; storms can bring flooding downpours and localized damaging wind gusts Hi: 84°

Tonight: Mostly cloudy and humid with a thunderstorm in parts of the area; storms can bring flooding downpours and localized damaging wind gusts Lo: 68°

Current Weather

4:05 PM

75°F

RealFeel® 70°

Mostly cloudy More Details

MINUTECAST®

Rain and a thunderstorm for at least 60 min

Now

5:05 PM

St. Catharines Weather Radar

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Clouds

Temperature

Hourly Weather

10-Day Weather Forecast

Today

7/9

84° 68°

Humid; a stray p.m. t-storm

Night: Humid with a stray t-storm

55%

Fri

7/10

80° 65°

A couple of morning showers

Mainly clear

83%

Sat

7/11

82° 63°

Sunshine and a few clouds

Mainly clear

Sun

7/12

83° 64°

Partly sunny

Mainly clear

Mon

7/13

89° 69°

Warm; a p.m. shower or two

A crystal-clear sky

70%

Tue

7/14

87° 70°

Warm; breezy in the afternoon

Breezy early; mainly clear

Wed

7/15

87° 68°

Partly sunny and very warm

Partly cloudy

Thu

7/16

82° 67°

Sunshine and a few clouds

A thunderstorm in spots late

Fri

7/17

84° 68°

A morning thunderstorm or two

Variable cloudiness and humid

61%

Sat

7/18

82° 67°

Humid with clouds and sun

Humid with rain

10%

Sun & Moon

15 hrs 12 mins

Rise 5:46 AM

Set 8:58 PM

Waning Crescent

Rise 1:04 AM

Set 4:07 PM

Air Quality

Air Quality Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.