St. Catharines, ON Weather

    23:00 Sunday
    Scattered clouds
    Scattered clouds
    -4° Feels like -9°
    New Moon New Moon Illuminated: 3%
    • Today 21 Dec. Partly cloudy 4° / -5° Strong west wind 35 - 65 km/h
    • Tomorrow 22 Dec. Partly cloudy 3° / -6° Moderate southwest wind 24 - 46 km/h
    • Tuesday 23 Dec. Rain and snow with partly cloud skies 90% 3.9 mm 4° / 0° Moderate west wind 25 - 46 km/h
    • Wednesday 24 Dec. Partly cloudy 3° / -2° Moderate northwest wind 24 - 45 km/h
    • Thursday 25 Dec. Partly cloudy 3° / -2° Moderate east wind 15 - 28 km/h
    • Friday 26 Dec. Freezing rain with cloudy skies 90% 12 mm 5° / -4° Moderate east wind 26 - 47 km/h
    • Saturday 27 Dec. Partly cloudy 6° / 1° Moderate southwest wind 20 - 34 km/h

    Weather Forecast for St. Catharines, ON Today

    , 21 December

    Tomorrow

    , 22 December
    17:00 Overcast -3° Overcast
    Feels Like -9°
    Moderate west wind West 23 - 49 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 64%
    • Dew Point Dew Point -9 °C
    • Clouds Clouds 99%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 23 km/h
    • Pressure Pressure 1029 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 49 km/h
    • Visibility Visibility 35 km
    18:00 Overcast -3° Overcast
    Feels Like -9°
    Moderate west wind West 22 - 46 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 67%
    • Dew Point Dew Point -8 °C
    • Clouds Clouds 99%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 22 km/h
    • Pressure Pressure 1030 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 46 km/h
    • Visibility Visibility 30 km
    19:00 Overcast -3° Overcast
    Feels Like -9°
    Moderate west wind West 22 - 43 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 69%
    • Dew Point Dew Point -8 °C
    • Clouds Clouds 100%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 22 km/h
    • Pressure Pressure 1031 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 43 km/h
    • Visibility Visibility 40 km
    20:00 Overcast -3° Overcast
    Feels Like -9°
    Moderate west wind West 22 - 43 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 69%
    • Dew Point Dew Point -8 °C
    • Clouds Clouds 98%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 22 km/h
    • Pressure Pressure 1031 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 43 km/h
    • Visibility Visibility 40 km
    21:00 Partly cloudy -4° Partly cloudy
    Feels Like -9°
    Moderate west wind West 21 - 41 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 69%
    • Dew Point Dew Point -8 °C
    • Clouds Clouds 59%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 21 km/h
    • Pressure Pressure 1032 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 41 km/h
    • Visibility Visibility 45 km
    22:00 Scattered clouds -4° Scattered clouds
    Feels Like -10°
    Moderate west wind West 20 - 39 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 69%
    • Dew Point Dew Point -9 °C
    • Clouds Clouds 27%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -10 °C
    • Wind Wind - Average 20 km/h
    • Pressure Pressure 1032 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 39 km/h
    • Visibility Visibility 50 km
    23:00 Scattered clouds -4° Scattered clouds
    Feels Like -9°
    Moderate west wind West 17 - 37 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 69%
    • Dew Point Dew Point -9 °C
    • Clouds Clouds 33%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 17 km/h
    • Pressure Pressure 1033 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 37 km/h
    • Visibility Visibility 50 km
    24:00 Clear skies -5° Clear
    Feels Like -9°
    Moderate southwest wind Southwest 13 - 32 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 69%
    • Dew Point Dew Point -10 °C
    • Clouds Clouds 9%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1033 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 32 km/h
    • Visibility Visibility 50 km

    Sunrise and Sunset

    Sunrise 07:45 Sunset 16:44
    First light 07:13 Midday 12:15 Last light 17:17
    Day length 8h 59m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    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
    31 First Quarter
    1 First Quarter
    2 Full Moon
    3 Full Moon

    Air quality in St. Catharines today

    Detail
    28
    Fair O₃ (67 µg/m³)
    • Little health risk.
    • Sensitive people should consider reducing prolonged or intense outdoor activities if they experience symptoms.

    Weather graphs
    Maximum Minimum Rainfall

    Videos

    More Videos
    A large lenticular cloud covers one of the volcanoes in Kamchatka, Russia
    A large lenticular cloud covers one of the volcanoes in Kamchatka, Russia