WELLBURN AGROMART LIMITED

	Area Conditions for St Marys, ON

Change Zip Code:

As reported at HPSTS St Mary's, ON at 5:00 PM

	5-day Forecast for St Marys, ON

Date	Fri 27 Mar	Sat 28 Mar	Sun 29 Mar	Mon 30 Mar	Tue 31 Mar
Weather Condition
Weather	Mostly Cloudy	Cloudy	Cloudy	Rain	Thunder Storms
Temperature (°C) Low/High	-7/0	-7/1	-2/10	3/13	8/18
Feels Like (°C) Low/High	-11/-5	-12/-4	-7/10	0/13	6/18
Dew Point (°C)	-11	-11	-3	3	10
Humidity (%)	50	49	58	68	86
Wind Speed (kph)	18	19	19	10	24
Precipitation Chance (%)	-	-	-	54	80
Precipitation Amount (cm) S=Snow, L=Liquid	None	None	None	Rain 0.23	Rain 2.18
Evapo- transpiration (cm/day)	0.18	0.18	0.25	0.2	0.18

DTN Weather

Local Weather
Radar
Current Temperatures
North American Satellite
US Satellite
DTN Weather Commentary
Current Surface Analysis
Wind Conditions
Today's Forecast Highs
Tonight's Forecast Lows
24 Hr Surface Forecast
Jet Stream Forecast
24 Hr Precipitation Totals
24 Hr StormPath Accum
48 Hr StormPath Accum
5 Day StormPath Accum
3-5 Day Min Temps
6-10 Day Precip Forecast
Growing Degree Days
Soil Temperatures
US Drought Monitor
US Palmer Drought Index
US Crop Moisture Index

DTN Weather Summary

Bryce Anderson – DTN Meteorologist

Temperatures will rise in the Plains, East over the weekend. An active weather pattern will begin next week. » More DTN Weather Commentary

Posted at 11:52AM Fri Mar 27, 2026 CDT

Click here to get your local weather emailed to you each day.