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Area Conditions for St Marys, ON
 
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Temperature: 13 oC
Feels Like: 13 oC
Humidity: 77%
Barometer: 30.12
Dew Point: 9 oC
Wind Dir.: ESE
Wind Speed: 7 km/h
Sunrise: 7:06
Sunset: 7:31
Observation: Clear
As reported at HPSTS St Mary's, ON at 1:00 AM

5-day Forecast for St Marys, ON
Date Wed
17 Sep		 Thu
18 Sep		 Fri
19 Sep		 Sat
20 Sep		 Sun
21 Sep
Weather Condition Clear Partly Cloudy Partly Cloudy Clear Thunder Storms
Weather Clear Partly Cloudy Partly Cloudy Clear Thunder Storms
Temperature (°C)
Low/High		 9/26 11/24 10/19 7/20 9/25
Feels Like (°C)
Low/High		 9/26 11/24 10/19 4/20 8/25
Dew Point (°C) 11 13 9 4 9
Humidity (%) 55 66 59 49 60
Wind Speed (kph) 6 13 13 18 16
Precipitation
Chance (%)		 - - - - 40
Precipitation
Amount (cm)
S=Snow, L=Liquid		 None None None None Rain
0.46
Evapo-
transpiration
(cm/day)		 0.38 0.33 0.33 0.43 0.41
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Bryce Anderson – DTN Meteorologist
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Posted at 12:02PM Tue Sep 16, 2025 CDT
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