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  • Tonight

    May 4

    Mostly cloudy with a shower Lo 6°
  • Thu

    May 5

    Mostly cloudy with a shower 15°Lo 7°
    more
  • Fri

    May 6

    Partial sunshine 17°Lo 7°
    more
  • Sat

    May 7

    Becoming cloudy 19°Lo 6°
    more
  • Sun

    May 8

    Clouds and sun with a shower 15°Lo 5°
    more
Hi 11° RealFeel® 14° Precipitation 41%

Day

N

E

S

W

  • NE 18 km/h
  • Gusts: 32 km/h

Mostly cloudy and warmer with a shower or thunderstorm in the area

  • Max UV Index: 6 (High)
  • Thunderstorms: 40%
  • Precipitation: 3 mm
  • Rain: 3 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 6° RealFeel® 3° Precipitation 50%

Night

N

E

S

W

  • NE 13 km/h
  • Gusts: 24 km/h

Mostly cloudy with a shower in spots

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 2 mm
  • Rain: 2 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History - May 4

more Historical Weather Data >
  Today Normal Record 5/4/2015
High 11° 17° N/A 22°
Low N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:05 AM with 14:18 of sunlight, then sets at 8:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:57 AM with 12:54 of moolight, then sets at 5:51 PM

St. Catharines Weather Report

Fort McMurray fire: Over 80,000 evacuate Canada town as massive wildfire encroaches area

May 4, 2016; 9:00 PM ET

A massive wildfire burning in Alberta, Canada moved through the city of Fort McMurray, forcing the entire city to be evacuated. more >