• Today

    Apr 18

    12°Lo 1°

    A shower late this afternoon

    Fair for home energy
    • Avg
      RealFeel
    • Hi
      RealFeel
      12°
    • Wind
      Speed
      10 k/h
  • Sat

    Apr 19

    10°Lo -1°

    Mostly sunny

    Fair for home energy
    • Avg
      RealFeel
    • Hi
      RealFeel
      11°
    • Wind
      Speed
      10 k/h
    more
  • Sun

    Apr 20

    16°Lo 4°

    Partly sunny and warmer

    Fair for home energy
    • Avg
      RealFeel
      10°
    • Hi
      RealFeel
      21°
    • Wind
      Speed
      8 k/h
    more
  • Mon

    Apr 21

    19°Lo 8°

    Nice with clouds and sunshine

    Poor for home energy
    • Avg
      RealFeel
      12°
    • Hi
      RealFeel
      20°
    • Wind
      Speed
      13 k/h
    more
  • Tue

    Apr 22

    16°Lo 3°

    A shower possible

    Fair for home energy
    • Avg
      RealFeel
    • Hi
      RealFeel
      15°
    • Wind
      Speed
      18 k/h
    more
Next Previous
Hi 12° RealFeel® 12° Precipitation 55%

Day

N

E

S

W

  • SW 10 km/h
  • Gusts: 16 km/h

Mostly cloudy with a shower in the area late this afternoon

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 20%
  • Precipitation: 0 mm
  • Rain: 0 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs
Lo 1° RealFeel® -2° Precipitation 49%

Night

N

E

S

W

  • NW 11 km/h
  • Gusts: 18 km/h

A shower in spots early this evening; otherwise, clouds breaking

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0 mm
  • Rain: 0 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2013
High 12° 14° N/A 26°
Low N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:30 AM with 13:33 of sunlight, then sets at 8:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:51 PM with 9:51 of moolight, then sets at 9:42 AM

Top Story

St. Catharines Weather Report

Long Range Hints through May

April 18, 2014; 7:23 AM ET

Updated look at the long range and potential El Nino later this year. more >