, °C

Personalized Forecasts

Featured Forecast

My Favorite Forecasts

    My Recent Locations

    • Early AM

      Oct 1

      13° Lo
      Showers
      • Sinus Headache
      • Weather
      • Hi RealFeel: 15°
      • UV: 2 - Low
      • Cloud Cover: 97%
      More
    • Today

      Oct 1

      18° /14°
      Occasional rain and drizzle
      • Beneficial
      • weather for sinus headaches
      • Hi RealFeel: 18°
      • UV: 2 - Low
      • Cloud Cover: 95%
      More
    • Sun

      Oct 2

      19° /14°
      Mostly cloudy, brief showers
      • Beneficial
      • weather for sinus headaches
      • Hi RealFeel: 19°
      • UV: 2 - Low
      • Cloud Cover: 76%
      More
    • Mon

      Oct 3

      19° /14°C
      Clouds breaking, a shower
      • Beneficial
      • weather for sinus headaches
      • Hi RealFeel: 20°
      • UV: 4 - Moderate
      • Cloud Cover: 50%
    • Tue

      Oct 4

      20° /14°
      A blend of sun and clouds
      • Neutral
      • weather for sinus headaches
      • Hi RealFeel: 20°
      • UV: 2 - Low
      • Cloud Cover: 25%
      More

    Day

    19°Hi RealFeel® 20° Precipitation 43%
    Clouds yielding to some sun with a shower in the area
    • N 9 km/h
    • Gusts: 18 km/h
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 20%
    • Precipitation: 1 mm
    • Rain: 1 mm
    • Snow: 0 CM
    • Ice: 0 mm
    • Hours of Precipitation: 1 hrs
    • Hours of Rain: 1 hrs

    Night

    14°Lo RealFeel® 14° Precipitation 25%
    Partly cloudy
    • ESE 6 km/h
    • Gusts: 17 km/h
    • Max UV Index: N/A
    • Thunderstorms: 20%
    • Precipitation: 0 mm
    • Rain: 0 mm
    • Snow: 0 CM
    • Ice: 0 mm
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/3/2015
    High 19° 19° N/A 12°
    Low 14° N/A

    Sunrise/Sunset

    • Sunrise: 7:17 AM
    • Sunset: 6:53 PM
    • Duration: 11:36 hr

    Moonrise/Moonset

    • Moonrise: 9:38 AM
    • Moonset: 8:31 PM
    • Duration: 10:53 hr
    Astronomy

    St. Catharines Weather Report

    Weekly update signals a mild October for a majority of Canada

    September 30, 2016; 12:09 PM ET

    Latest clues to the long range into October. More >