St. Catharines, ON Weather

    22:00 Wednesday
    Scattered clouds
    Scattered clouds
    -1° Feels like -3°
    Last Quarter Last Quarter Illuminated: 5%
    • Today 17 Dec. Scattered clouds 6° / -3° Strong southwest wind 36 - 65 km/h
    • Tomorrow 18 Dec. Light rain with partly cloudy skies 90% 2.1 mm 10° / -2° Strong south wind 37 - 64 km/h
    • Friday 19 Dec. Snow with cloudy skies 90% 6.8 mm 9° / -3° Very strong west wind 42 - 78 km/h
    • Saturday 20 Dec. Partly cloudy 5° / -5° Strong west wind 29 - 58 km/h
    • Sunday 21 Dec. Snow with partly cloudy skies 40% 0.3 mm 3° / -6° Strong west wind 35 - 68 km/h
    • Monday 22 Dec. Partly cloudy -1° / -5° Moderate northwest wind 22 - 47 km/h
    • Tuesday 23 Dec. Rain and snow with cloudy skies 70% 4.1 mm 4° / -5° Moderate southwest wind 25 - 45 km/h

    Weather Forecast for St. Catharines, ON Today

    , 17 December

    Tomorrow

    , 18 December
    17:00 Clear 2° Sunny
    Feels Like -1°
    Moderate west wind West 14 - 31 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 84%
    • Dew Point Dew Point 0 °C
    • Clouds Clouds 6%
    • Feels Like Feels Like -1 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1017 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 31 km/h
    • Snowline Snowline 1969 ft
    18:00 Scattered clouds 1° Scattered clouds
    Feels Like -2°
    Moderate west wind West 12 - 25 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 87%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 15%
    • Feels Like Feels Like -2 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1018 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 1640 ft
    19:00 Scattered clouds 0° Scattered clouds
    Feels Like -3°
    Moderate southwest wind Southwest 10 - 20 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 89%
    • Dew Point Dew Point -1 °C
    • Clouds Clouds 23%
    • Feels Like Feels Like -3 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Snowline Snowline 1969 ft
    20:00 Scattered clouds -1° Scattered clouds
    Feels Like -3°
    Gentle southwest wind Southwest 7 - 16 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 91%
    • Dew Point Dew Point -2 °C
    • Clouds Clouds 13%
    • Feels Like Feels Like -3 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 16 km/h
    • Snowline Snowline 5906 ft
    21:00 Scattered clouds -1° Scattered clouds
    Feels Like -3°
    Gentle south wind South 6 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point -2 °C
    • Clouds Clouds 28%
    • Feels Like Feels Like -3 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 5906 ft
    22:00 Scattered clouds -1° Scattered clouds
    Feels Like -3°
    Gentle south wind South 7 - 12 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point -2 °C
    • Clouds Clouds 24%
    • Feels Like Feels Like -3 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 12 km/h
    • Snowline Snowline 6234 ft
    23:00 Clear skies -1° Clear
    Feels Like -3°
    Gentle south wind South 6 - 12 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point -2 °C
    • Clouds Clouds 5%
    • Feels Like Feels Like -3 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 12 km/h
    • Snowline Snowline 6562 ft
    24:00 Scattered clouds -2° Scattered clouds
    Feels Like -4°
    Gentle south wind South 7 - 12 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point -3 °C
    • Clouds Clouds 25%
    • Feels Like Feels Like -4 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 12 km/h
    • Snowline Snowline 6890 ft

    Sunrise and Sunset

    Sunrise 07:43 Sunset 16:43
    First light 07:10 Midday 12:13 Last light 17:15
    Day length 9h

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    17 Last Quarter
    18 New Moon
    19 New Moon
    20 New Moon
    21 New Moon
    22 First Quarter
    23 First Quarter
    24 First Quarter
    25 First Quarter
    26 First Quarter
    27 First Quarter
    28 First Quarter
    29 First Quarter
    30 First Quarter

    Air quality in St. Catharines today

    Detail
    33
    Fair O₃ (80 µg/m³)
    • Little health risk.
    • Sensitive people should consider reducing prolonged or intense outdoor activities if they experience symptoms.

    Weather graphs
    Maximum Minimum Rainfall

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