St. Marys, ON Weather

    22:00 Wednesday
    Scattered clouds
    Scattered clouds
    22° Feels like 22°
    New Moon New Moon Illuminated: 2%
    reloj Hourly Cloudy skies for the next few hours
    • Today 15 July Scattered clouds 31° / 21° Moderate northwest wind 19 - 37 km/h
    • Tomorrow 16 July Scattered clouds 27° / 18° Moderate northwest wind 21 - 40 km/h
    • Friday 17 July Light rain with partly cloudy skies 40% 0.9 mm 29° / 16° Moderate southwest wind 14 - 29 km/h
    • Saturday 18 July Thunderstorm with partly cloudy skies 90% 36 mm 31° / 19° Moderate west wind 23 - 47 km/h
    • Sunday 19 July Scattered clouds 23° / 15° Moderate north wind 17 - 34 km/h
    • Monday 20 July Light rain with partly cloudy skies 50% 0.2 mm 26° / 14° Moderate southwest wind 19 - 37 km/h
    • Tuesday 21 July Thunderstorm with partly cloudy skies 80% 7.9 mm 26° / 18° Moderate south wind 16 - 47 km/h

    Weather Forecast for St. Marys, ON Today

    , 15 July

    Tomorrow

    , 16 July
    17:00 Partly cloudy 29° Partly cloudy
    Feels Like 28°
    Moderate northwest wind Northwest 14 - 33 km/h
    		UV Index 3 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 41%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 66%
    • Feels Like Feels Like 28 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 14 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 33 km/h
    • Snowline Snowline 15748 ft
    18:00 Scattered clouds 29° Scattered clouds
    Feels Like 28°
    Moderate northwest wind Northwest 13 - 28 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 40%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 54%
    • Feels Like Feels Like 28 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1014 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 28 km/h
    • Snowline Snowline 15420 ft
    19:00 Scattered clouds 28° Scattered clouds
    Feels Like 28°
    Moderate northwest wind Northwest 12 - 25 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 44%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 49%
    • Feels Like Feels Like 28 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1014 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Snowline Snowline 15748 ft
    20:00 Partly cloudy 26° Partly cloudy
    Feels Like 26°
    Moderate northwest wind Northwest 12 - 22 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 48%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 65%
    • Feels Like Feels Like 26 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 22 km/h
    • Snowline Snowline 15748 ft
    21:00 Partly cloudy 24° Partly cloudy
    Feels Like 25°
    Moderate north wind North 6 - 20 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 55%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 55%
    • Feels Like Feels Like 25 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Snowline Snowline 16076 ft
    22:00 Scattered clouds 23° Scattered clouds
    Feels Like 25°
    Gentle north wind North 8 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 57%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 34%
    • Feels Like Feels Like 25 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1015 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 15748 ft
    23:00 Scattered clouds 22° Scattered clouds
    Feels Like 22°
    Gentle north wind North 8 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 61%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 29%
    • Feels Like Feels Like 22 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 15420 ft
    24:00 Scattered clouds 21° Scattered clouds
    Feels Like 21°
    Gentle northwest wind Northwest 8 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 63%
    • Dew Point Dew Point 14 °C
    • Clouds Clouds 26%
    • Feels Like Feels Like 21 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1016 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 14764 ft

    Air quality in St. Marys today

    Detail
    64
    Unhealthy O₃ (176 µg/m³)

    Sunrise and Sunset

    Sunrise 05:58 Sunset 21:02
    First light 05:24 Midday 13:30 Last light 21:36
    Day length 15h 4m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    15 New Moon
    16 First Quarter
    17 First Quarter
    18 First Quarter
    19 First Quarter
    20 First Quarter
    21 First Quarter
    22 First Quarter
    23 First Quarter
    24 First Quarter
    25 First Quarter
    26 First Quarter
    27 First Quarter
    28 Full Moon

    What is the weather like in St. Marys, ON in July?

    • Avg. Temp.
      Avg. Temp.: 21 °C Max.: 26 °C Min: 16 °C
    • Rainy Days
      Rainy Days: 13 days
    • Accumulated Rainfall
      Accumulated Rainfall: 103 mm
    • Average Wind Speed
      Average Wind Speed: 10 km/h

    Weather graphs

    Videos

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