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Area Conditions for
St Marys, ON
Change Zip Code:
Temperature:
19
o
C
Feels Like:
19
o
C
Humidity:
93%
Barometer:
29.8
Dew Point:
18
o
C
Wind Dir.:
SSW
Wind Speed:
9 km/h
Sunrise:
5:44
Sunset:
9:07
Observation:
Partly Cloudy
As reported at HPSTS St Mary's, ON at 4:00 AM
5-day Forecast for
St Marys, ON
Date
Wed
18 Jun
Thu
19 Jun
Fri
20 Jun
Sat
21 Jun
Sun
22 Jun
Weather Condition
Weather
Thunder Storms
Thunder Storms
Thunder Storms
Thunder Storms
Partly Cloudy
Temperature
(°C)
Low/High
18/26
15/21
13/27
17/27
22/32
Feels Like
(°C)
Low/High
18/27
15/21
13/27
17/28
22/36
Dew Point
(°C)
19
16
14
17
21
Humidity
(%)
76
73
62
69
64
Wind Speed
(kph)
10
23
16
26
19
Precipitation
Chance
(%)
70
79
40
36
-
Precipitation
Amount
(cm)
S=Snow, L=Liquid
Rain
2.08
Rain
0.66
Rain
0.13
Rain
0.81
None
Evapo-
transpiration
(cm/day)
0.36
0.38
0.51
0.53
0.69
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DTN Weather Summary
Bryce Anderson
–
DTN Meteorologist
Bio
Severe Storms in Kansas Tuesday Move Into Midwest Wednesday
» More DTN Weather Commentary
Posted at 12:18PM Tue Jun 17, 2025 CDT
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