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  • Today

    May 19

    Variably cloudy and warmer 23°Lo 15°
    more

  • Mon

    May 20

    Nice with clouds and sun 25°Lo 15°
    more

  • Tue

    May 21

    A couple of thunderstorms 23°Lo 13°
    more

  • Wed

    May 22

    Mostly cloudy with a t-storm 24°Lo 14°
    more

  • Thu

    May 23

    A couple of thunderstorms 21°Lo 11°

Thunderstorms in the area tomorrow evening through Tuesday afternoon Details >

A couple of showers and thunderstorms 19° Lo 17° RealFeel® 20° / 15°

N

E

S

W

  • Precipitation: 60%
  • Rain: 3 mm
  • Snow: 0 CM
  • Humidity: 74%
  • Cloud Cover: 76%
  • Dew Point: 13° C
  • Visibility: 8 km
10 km/h

Temperature History - May 23

more Historical Weather Data >
  Today Normal Record 5/23/2012
High 21° 20° N/A 19°
Low 11° 9° N/A 15°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:46 AM with 14:56 of sunlight, then sets at 8:42 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:10 PM with 10:07 of moolight, then sets at 5:17 AM

Top Story

St. Catharines Weather Report

The Summer Outlook for Canada

May 18, 2013; 9:44 AM ET

The Accuweather.com summer forecast for Canada. more >