• Friday

    Feb 19

    7°Lo 5°

    Cloudy and milder

    At Extreme Risk weather for sinus headaches
    • Hi
      RealFeel
    • UV
      2 - Low
    • Cloud
      Cover
      96%
    more
  • Saturday

    Feb 20

    8°Lo -2°

    Partly sunny

    At High Risk weather for sinus headaches
    • Hi
      RealFeel
    • UV
      4 - Moderate
    • Cloud
      Cover
      43%
    more
  • Sunday

    Feb 21

    6°Lo -1°

    Sun and areas of low clouds

    At Risk weather for sinus headaches
    • Hi
      RealFeel
    • UV
      2 - Low
    • Cloud
      Cover
      77%
    more
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St. Catharines Weekend Weather Chat