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  • Today

    May 21

    A couple of p.m. t-storms 27°Lo 16°

  • Wed

    May 22

    Strong t-storms, mainly later 23°Lo 16°
    more

  • Thu

    May 23

    A couple of thunderstorms 20°Lo 7°
    more

  • Fri

    May 24

    Cooler with clouds and sun 14°Lo 6°
    more

  • Sat

    May 25

    Mostly sunny and warmer 18°Lo 6°
    more
Warmer 23° Lo 13° RealFeel® 22° / 13°

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W

  • Precipitation: 51%
  • Rain: 0 mm
  • Snow: 0 CM
  • Humidity: 81%
  • Cloud Cover: 65%
  • Dew Point: 13° C
  • Visibility: 9 km
13 km/h

Temperature History - May 21

more Historical Weather Data >
  Today Normal Record 5/21/2012
High 27° 20° N/A 24°
Low 16° 8° N/A 14°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:47 AM with 14:53 of sunlight, then sets at 8:40 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:46 PM with 11:08 of moolight, then sets at 3:54 AM

Top Story

St. Catharines Weather Report

The Summer Outlook for Canada

May 20, 2013; 2:44 PM ET

The Accuweather.com summer forecast for Canada. more >