St. Catharines, ON
  • -17°C
    : -28°C
    Partly cloudy
    • : 28km/h NO
    • : 102.1 kPa
    • : -21°C
    • : 71%
    • : -17°C / : -11°C
  • Monday morning
    -18°C
    Isolated flurries
  • Monday afternoon
    -11°C
    Sunny with cloudy periods
  • Monday evening
    -12°C
    Cloudy periods
  • -11°C
    : 40%
  • -4°C
    : 20%
  • C
    : 80%
  • -1°C
    : 40%