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St. Marys, Ontario

65°F
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St. Marys

Ontario

65°
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St. Marys, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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8 PM

63°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 25%
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Mostly cloudy

WindSSW 7 mph

Air QualityFair

Wind Gusts17 mph

Humidity87%

Indoor Humidity74% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

63°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 25%
Chevron down
Mostly cloudy

WindSSW 7 mph

Air QualityFair

Wind Gusts17 mph

Humidity88%

Indoor Humidity73% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

63°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 31%
Chevron down
Mostly cloudy

WindSW 8 mph

Air QualityFair

Wind Gusts18 mph

Humidity88%

Indoor Humidity73% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

62°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 52%
Chevron down
Rain

WindSW 8 mph

Air QualityFair

Wind Gusts18 mph

Humidity90%

Indoor Humidity73% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Rain0.02 in

Visibility6 mi

Cloud Ceiling4000 ft

Hourly Weather Forecast for St. Marys

AccuWeather's hourly forecast for St. Marys provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 63° with a RealFeel® of 62°, mostly cloudy with a 25% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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World North America Canada Ontario St. Marys

Weather Near St. Marys:

  • Brampton, Ontario
  • Mississauga Valley, Ontario
  • Toronto, Ontario
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