St. Marys, ON Weather

21:00 Friday Artboard
Clear sky Clear sky 17° Feels like 17° Last Quarter Last Quarter Illuminated: 66%
reloj Hourly Cloudy intervals for the next few hours
  • Today 26 July Clear 25° / 11° Calm 11 - 22 km/h
  • Tomorrow 27 July Scattered clouds 27° / 12° Calm 9 - 18 km/h
  • Sunday 28 July Clear 30° / 14° Calm 11 - 24 km/h
  • Monday 29 July Scattered clouds 32° / 17° Calm 10 - 23 km/h
  • Tuesday 30 July Light rain 80% 1.2 mm 29° / 19° Calm 16 - 41 km/h
  • Wednesday 31 July Light rain 90% 3 mm 29° / 20° Calm 16 - 35 km/h
  • Thursday 1 Aug. Scattered clouds 31° / 17° Calm 7 - 20 km/h

Weather Forecast for St. Marys, ON Today

, 26 July

Tomorrow

, 27 July
17:00 Clear 25° Clear
Feels Like 26°
Calm North 5 - 18 km/h
UV Index 3 Moderate SPF: 6-10
  • Rain Rain 0% 0 mm
  • Humidity Humidity 44%
  • Dew Point Dew Point 12 °C
  • Clouds Clouds 6%
  • Feels Like Feels Like 26 °C
  • Visibility Visibility 40 km
  • Wind Wind - Average 5 km/h
  • Pressure Pressure 1021 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 18 km/h
  • Snowline Snowline 4300 m
18:00 Clear 25° Clear
Feels Like 26°
Calm North 5 - 15 km/h
UV Index 2 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 44%
  • Dew Point Dew Point 12 °C
  • Clouds Clouds 5%
  • Feels Like Feels Like 26 °C
  • Visibility Visibility 40 km
  • Wind Wind - Average 5 km/h
  • Pressure Pressure 1021 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 15 km/h
  • Snowline Snowline 4300 m
19:00 Clear 24° Clear
Feels Like 25°
Calm Northwest 6 - 14 km/h
UV Index 1 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 49%
  • Dew Point Dew Point 12 °C
  • Clouds Clouds 4%
  • Feels Like Feels Like 25 °C
  • Visibility Visibility 40 km
  • Wind Wind - Average 6 km/h
  • Pressure Pressure 1021 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 14 km/h
  • Snowline Snowline 4400 m
20:00 Clear 21° Clear
Feels Like 21°
Calm Northwest 11 - 22 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 61%
  • Dew Point Dew Point 13 °C
  • Clouds Clouds 2%
  • Feels Like Feels Like 21 °C
  • Visibility Visibility 35 km
  • Wind Wind - Average 11 km/h
  • Pressure Pressure 1021 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 22 km/h
  • Snowline Snowline 4500 m
21:00 Clear 19° Clear
Feels Like 19°
Calm Northwest 9 - 21 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 67%
  • Dew Point Dew Point 12 °C
  • Clouds Clouds 0%
  • Feels Like Feels Like 19 °C
  • Visibility Visibility 35 km
  • Wind Wind - Average 9 km/h
  • Pressure Pressure 1021 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 21 km/h
  • Snowline Snowline 4500 m
22:00 Clear sky 17° Clear sky
Feels Like 17°
Calm North 7 - 16 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 74%
  • Dew Point Dew Point 12 °C
  • Clouds Clouds 0%
  • Feels Like Feels Like 17 °C
  • Visibility Visibility 35 km
  • Wind Wind - Average 7 km/h
  • Pressure Pressure 1021 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 16 km/h
  • Snowline Snowline 4500 m
23:00 Clear sky 17° Clear sky
Feels Like 17°
Calm North 8 - 21 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 76%
  • Dew Point Dew Point 12 °C
  • Clouds Clouds 7%
  • Feels Like Feels Like 17 °C
  • Visibility Visibility 35 km
  • Wind Wind - Average 8 km/h
  • Pressure Pressure 1021 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 21 km/h
  • Snowline Snowline 4500 m
24:00 Clear sky 16° Clear sky
Feels Like 16°
Calm North 8 - 13 km/h
UV Index 0 Low SPF: no
  • Rain Rain 0% 0 mm
  • Humidity Humidity 76%
  • Dew Point Dew Point 12 °C
  • Clouds Clouds 9%
  • Feels Like Feels Like 16 °C
  • Visibility Visibility 35 km
  • Wind Wind - Average 8 km/h
  • Pressure Pressure 1021 hPa
  • Fog Fog No
  • Wind - Gusts Wind - Gusts 13 km/h
  • Snowline Snowline 4500 m

Air quality in St. Marys today

Detail
45
Moderate O₃ (113 µg/m³)
  • Possible health risk.
  • Enjoy your usual outdoor activities if you do not experience symptoms.
  • Sensitive people should limit prolonged or intense outdoor activities.

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Maximum Minimum Rainfall
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