• Early AM

    Jul 12

    Lo 16°

    Partly cloudy

    Asthma Weather
    • Hi
      RealFeel
      28°
    • UV
      7 - High
    • Air Qual.
      Good
    more
  • Today

    Jul 12

    28°Lo 20°

    Partly sunny

    Beneficial weather for asthma
    • Hi
      RealFeel
      30°
    • UV
      7 - High
    • Air Qual.
      Moderate
  • Sun

    Jul 13

    27°Lo 18°

    Strong thunderstorms

    At High Risk weather for asthma
    • Hi
      RealFeel
      27°
    • UV
      4 - Moderate
    • Air Qual.
      Moderate
    more
  • Mon

    Jul 14

    25°Lo 16°

    Thundershower

    Neutral weather for asthma
    • Hi
      RealFeel
      26°
    • UV
      5 - Moderate
    • Cloud
      Cover
      83%
    more
  • Tue

    Jul 15

    23°Lo 14°

    A thunderstorm in spots

    Neutral weather for asthma
    • Hi
      RealFeel
      23°
    • UV
      5 - Moderate
    • Cloud
      Cover
      76%
    more
Next Previous
Hi 28° RealFeel® 30° Precipitation 1%

Day

N

E

S

W

  • WNW 10 km/h
  • Gusts: 16 km/h

Partly sunny

  • Max UV Index: 7 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 mm
  • Rain: 0 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 20° RealFeel® 18° Precipitation 63%

Night

N

E

S

W

  • S 11 km/h
  • Gusts: 19 km/h

Partly cloudy with a couple of showers and a thunderstorm late

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 5 mm
  • Rain: 5 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs

Temperature History - Jul 12

more Historical Weather Data >
  Today Normal Record 7/12/2013
High 28° 27° N/A 22°
Low 20° 16° N/A 19°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:48 AM with 15:09 of sunlight, then sets at 8:57 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:53 PM with 10:28 of moolight, then sets at 7:21 AM

Top Story

St. Catharines Weather Report

Long-Range Pattern Update

July 11, 2014; 11:05 AM ET

Pattern of extremes into next week and a look at August. more >