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  • Today

    Aug 20

    Cloudy and humid 25°Lo 18°
  • Thu

    Aug 21

    A couple of thunderstorms 25°Lo 16°
    more
  • Fri

    Aug 22

    A thunderstorm in spots 25°Lo 17°
    more
  • Sat

    Aug 23

    A brief shower or two 25°Lo 17°
    more
  • Sun

    Aug 24

    Variable clouds, a t-storm 25°Lo 17°
    more
Hi 25° RealFeel® 26° Precipitation 35%

Day

N

E

S

W

  • SW 8 km/h
  • Gusts: 19 km/h

Cloudy and humid

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 40%
  • Precipitation: 0 mm
  • Rain: 0 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 18° RealFeel® 17° Precipitation 63%

Night

N

E

S

W

  • WSW 8 km/h
  • Gusts: 14 km/h

Partly cloudy with a couple of showers and a thunderstorm, mainly early

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 5 mm
  • Rain: 5 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 2.5 hrs
  • Hours of Rain: 2.5 hrs

Temperature History - Aug 20

more Historical Weather Data >
  Today Normal Record 8/20/2013
High 25° 26° N/A 28°
Low 18° 15° N/A 19°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:28 AM with 13:44 of sunlight, then sets at 8:12 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:04 AM with 14:54 of moolight, then sets at 4:58 PM

Top Story

St. Catharines Weather Report

Weather Pattern Highlights Into Next Week

August 20, 2014; 10:27 AM ET

A look at the weather pattern across Canada into next week. more >