Area Conditions for St Marys, ON
 
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Temperature: -13 oC
Feels Like: -21 oC
Humidity: 80%
Barometer: 30.03
Dew Point: -16 oC
Wind Dir.: SW
Wind Speed: 20 km/h
Sunrise: 7:51
Sunset: 5:18
Observation: Cloudy
As reported at HPSTS St Mary's, ON at 7:00 AM

5-day Forecast for St Marys, ON
Date Sun
18 Jan
Mon
19 Jan
Tue
20 Jan
Wed
21 Jan
Thu
22 Jan
Weather Condition Snow Showers Snow Snow Snow Snow
Weather Snow Showers Snow Snow Snow Snow
Temperature (°C)
Low/High
-13/-8 -13/-9 -17/-12 -14/-3 -12/-6
Feels Like (°C)
Low/High
-21/-15 -23/-17 -28/-21 -22/-9 -21/-13
Dew Point (°C) -13 -13 -17 -11 -12
Humidity (%) 85 82 79 93 77
Wind Speed (kph) 18 31 27 26 29
Precipitation
Chance
(%)
80 80 52 80 80
Precipitation
Amount
(cm)
S=Snow, L=Liquid
S: <.6
L: 0.03
S: 6-10
L: 0.61
S: 6-10
L: 0.41
S: 6-10
L: 0.69
S: 6-10
L: 0.58
Evapo-
transpiration

(cm/day)
0.03 0.03 0.03 0.03 0.05
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Bryce Anderson – DTN Meteorologist
Clippers Continue for Eastern US Over the Holiday Weekend
Posted at 11:55AM Fri Jan 16, 2026 CST
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