St. Marys, ON Weather

    04:00 Saturday
    Overcast
    Overcast
    -6° Feels like -9°
    First Quarter First Quarter Illuminated: 49%
    • Today 27 Dec. Partly cloudy -2° / -7° Moderate southeast wind 15 - 26 km/h
    • Tomorrow 28 Dec. Rain and snow with partly cloud skies 90% 20 mm 3° / -5° Moderate southeast wind 25 - 46 km/h
    • Monday 29 Dec. Snow with cloudy skies 90% 14 mm 9° / -8° Very strong southwest wind 49 - 86 km/h
    • Tuesday 30 Dec. Snow with cloudy skies 90% 7.4 mm -6° / -8° Strong northwest wind 36 - 68 km/h
    • Wednesday 31 Dec. Snow with cloudy skies 90% 5.5 mm -4° / -11° Strong southwest wind 29 - 52 km/h
    • Thursday 1 Jan. Snow with cloudy skies 90% 0.5 mm -10° / -14° Moderate southwest wind 24 - 42 km/h
    • Friday 2 Jan. Snow with partly cloudy skies 60% 0.5 mm -9° / -15° Strong southwest wind 31 - 55 km/h

    Weather Forecast for St. Marys, ON Today

    , 27 December

    Tomorrow

    , 28 December
    04:00 Overcast -6° Overcast
    Feels Like -9°
    Gentle north wind North 8 - 12 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point -7 °C
    • Clouds Clouds 100%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1017 hPa
    • Snowline Snowline 8858 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 12 km/h
    • Visibility Visibility 20 km
    05:00 Overcast -5° Overcast
    Feels Like -9°
    Gentle northeast wind Northeast 8 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point -6 °C
    • Clouds Clouds 100%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1017 hPa
    • Snowline Snowline 8858 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Visibility Visibility 25 km
    06:00 Overcast -5° Overcast
    Feels Like -9°
    Gentle northeast wind Northeast 7 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 91%
    • Dew Point Dew Point -7 °C
    • Clouds Clouds 100%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1018 hPa
    • Snowline Snowline 8858 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Visibility Visibility 30 km
    07:00 Overcast -6° Overcast
    Feels Like -8°
    Gentle east wind East 5 - 12 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 91%
    • Dew Point Dew Point -7 °C
    • Clouds Clouds 99%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -8 °C
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1019 hPa
    • Snowline Snowline 8530 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 12 km/h
    • Visibility Visibility 25 km
    Overcast 08:00 Overcast -7° Overcast
    Feels Like -9°
    Gentle east wind East 5 - 8 km/h
    		UV Index 0 Low SPF: no
    08:00 Overcast -7° Overcast
    Feels Like -9°
    Gentle east wind East 5 - 8 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 91%
    • Dew Point Dew Point -8 °C
    • Clouds Clouds 99%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1020 hPa
    • Snowline Snowline 8530 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 8 km/h
    • Visibility Visibility 25 km
    09:00 Overcast -6° Overcast
    Feels Like -9°
    Gentle east wind East 8 - 12 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 91%
    • Dew Point Dew Point -7 °C
    • Clouds Clouds 98%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 8530 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 12 km/h
    • Visibility Visibility 25 km
    10:00 Partly cloudy -5° Partly cloudy
    Feels Like -8°
    Gentle east wind East 8 - 16 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 88%
    • Dew Point Dew Point -7 °C
    • Clouds Clouds 83%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -8 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 8530 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 16 km/h
    • Visibility Visibility 35 km
    Partly cloudy 11:00 Partly cloudy -5° Partly cloudy
    Feels Like -8°
    Gentle east wind East 8 - 16 km/h
    		UV Index 1 Low SPF: no
    11:00 Partly cloudy -5° Partly cloudy
    Feels Like -8°
    Gentle east wind East 8 - 16 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 88%
    • Dew Point Dew Point -6 °C
    • Clouds Clouds 68%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -8 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1022 hPa
    • Snowline Snowline 8530 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 16 km/h
    • Visibility Visibility 35 km
    12:00 Partly cloudy -4° Partly cloudy
    Feels Like -8°
    Gentle east wind East 10 - 18 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 89%
    • Dew Point Dew Point -6 °C
    • Clouds Clouds 75%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -8 °C
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 8530 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 18 km/h
    • Visibility Visibility 30 km
    13:00 Overcast -4° Overcast
    Feels Like -8°
    Moderate southeast wind Southeast 10 - 20 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 90%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 97%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -8 °C
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 8858 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Visibility Visibility 30 km
    Partly cloudy 14:00 Partly cloudy -3° Partly cloudy
    Feels Like -7°
    Moderate southeast wind Southeast 11 - 20 km/h
    		UV Index 1 Low SPF: no
    14:00 Overcast -3° Overcast
    Feels Like -7°
    Moderate southeast wind Southeast 11 - 20 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 87%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 94%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -7 °C
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 8858 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Visibility Visibility 35 km
    15:00 Partly cloudy -3° Partly cloudy
    Feels Like -6°
    Gentle southeast wind Southeast 9 - 19 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 85%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 86%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -6 °C
    • Wind Wind - Average 9 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 8858 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 19 km/h
    • Visibility Visibility 35 km
    16:00 Partly cloudy -3° Partly cloudy
    Feels Like -6°
    Gentle east wind East 8 - 15 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 86%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 75%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -6 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 8858 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 15 km/h
    • Visibility Visibility 40 km
    Partly cloudy 17:00 Partly cloudy -4° Partly cloudy
    Feels Like -8°
    Gentle southeast wind Southeast 9 - 14 km/h
    		UV Index 0 Low SPF: no
    17:00 Overcast -4° Overcast
    Feels Like -8°
    Gentle southeast wind Southeast 9 - 14 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 87%
    • Dew Point Dew Point -6 °C
    • Clouds Clouds 95%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -8 °C
    • Wind Wind - Average 9 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 8858 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 14 km/h
    • Visibility Visibility 35 km
    18:00 Overcast -4° Overcast
    Feels Like -7°
    Gentle southeast wind Southeast 11 - 17 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 88%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 100%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -7 °C
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 8858 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 17 km/h
    • Visibility Visibility 35 km
    19:00 Overcast -3° Overcast
    Feels Like -8°
    Moderate southeast wind Southeast 13 - 21 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 90%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 100%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -8 °C
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 8858 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 21 km/h
    • Visibility Visibility 20 km
    Overcast 20:00 Overcast -4° Overcast
    Feels Like -8°
    Moderate southeast wind Southeast 14 - 23 km/h
    		UV Index 0 Low SPF: no
    20:00 Overcast -4° Overcast
    Feels Like -8°
    Moderate southeast wind Southeast 14 - 23 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 91%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 100%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -8 °C
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 9186 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 23 km/h
    • Visibility Visibility 16 km
    21:00 Overcast -4° Overcast
    Feels Like -9°
    Moderate southeast wind Southeast 15 - 25 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 92%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 100%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 9186 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Visibility Visibility 12 km
    22:00 Overcast -4° Overcast
    Feels Like -9°
    Moderate southeast wind Southeast 15 - 26 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 100%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1020 hPa
    • Snowline Snowline 9186 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 26 km/h
    • Visibility Visibility 12 km
    Overcast 23:00 Overcast -4° Overcast
    Feels Like -9°
    Moderate southeast wind Southeast 15 - 26 km/h
    		UV Index 0 Low SPF: no
    23:00 Overcast -4° Overcast
    Feels Like -9°
    Moderate southeast wind Southeast 15 - 26 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point -5 °C
    • Clouds Clouds 100%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -9 °C
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1020 hPa
    • Snowline Snowline 9186 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 26 km/h
    • Visibility Visibility 25 km
    24:00 Overcast -3° Overcast
    Feels Like -8°
    Moderate southeast wind Southeast 15 - 25 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 93%
    • Dew Point Dew Point -4 °C
    • Clouds Clouds 99%
    • Snow depth Snow depth 5.12 in
    • Feels Like Feels Like -8 °C
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1019 hPa
    • Snowline Snowline 9186 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Visibility Visibility 30 km

    Sunrise and Sunset

    Sunrise 07:55 Sunset 16:55
    First light 07:23 Midday 12:25 Last light 17:28
    Day length 9h

    Time remaining until sunrise 3h 46m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    27 First Quarter
    28 First Quarter
    29 First Quarter
    30 First Quarter
    31 First Quarter
    1 First Quarter
    2 Full Moon
    3 Full Moon
    4 Full Moon
    5 Last Quarter
    6 Last Quarter
    7 Last Quarter
    8 Last Quarter
    9 Last Quarter

    Air quality in St. Marys today

    Detail
    28
    Fair O₃ (68 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 very intense storm causes flooding in Buenos Aires, Argentina
    A very intense storm causes flooding in Buenos Aires, Argentina