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St. Marys, Ontario

72°F
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St. Marys

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72°
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St. Marys, Ontario Weather
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 Daily Radar MinuteCast Monthly Air Quality Health & Activities

11 AM

74°
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 60%
Chevron down
Showers

RealFeel Shade™70°

WindS 13 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts21 mph

Humidity75%

Indoor Humidity75% (Humid)

Dew Point66° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.04 in

Visibility10 mi

Cloud Ceiling22500 ft

12 PM

77°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 62%
Chevron down
Showers

RealFeel Shade™72°

WindS 15 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts25 mph

Humidity72%

Indoor Humidity72% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility10 mi

Cloud Ceiling24800 ft

1 PM

77°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 49%
Chevron down
Mostly cloudy

RealFeel Shade™75°

WindSSW 15 mph

Air QualityFair

Max UV Index8 (Very High)

Wind Gusts28 mph

Humidity72%

Indoor Humidity72% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

78°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 43%
Chevron down
Mostly cloudy

RealFeel Shade™76°

WindSSW 17 mph

Air QualityFair

Max UV Index7 (High)

Wind Gusts31 mph

Humidity69%

Indoor Humidity69% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

79°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 47%
Chevron down
Mostly cloudy

RealFeel Shade™77°

WindSSW 17 mph

Air QualityPoor

Max UV Index6 (High)

Wind Gusts33 mph

Humidity66%

Indoor Humidity66% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

80°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms

RealFeel Shade™75°

WindSSW 18 mph

Air QualityPoor

Max UV Index2 (Low)

Wind Gusts35 mph

Humidity67%

Indoor Humidity67% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

5 PM

82°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 38%
Chevron down
Mostly cloudy

RealFeel Shade™80°

WindSSW 20 mph

Air QualityPoor

Max UV Index3 (Moderate)

Wind Gusts36 mph

Humidity64%

Indoor Humidity64% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

80°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 32%
Chevron down
Mostly cloudy

RealFeel Shade™78°

WindSSW 21 mph

Air QualityPoor

Max UV Index2 (Low)

Wind Gusts37 mph

Humidity66%

Indoor Humidity66% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

79°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 32%
Chevron down
Mostly cloudy

RealFeel Shade™77°

WindSSW 21 mph

Air QualityPoor

Max UV Index1 (Low)

Wind Gusts38 mph

Humidity68%

Indoor Humidity68% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

82°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 32%
Chevron down
Intermittent clouds

RealFeel Shade™80°

WindSSW 18 mph

Air QualityPoor

Max UV Index0 (Low)

Wind Gusts35 mph

Humidity61%

Indoor Humidity61% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

80°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 32%
Chevron down
Intermittent clouds

RealFeel Shade™78°

WindSSW 18 mph

Air QualityPoor

Max UV Index0 (Low)

Wind Gusts35 mph

Humidity64%

Indoor Humidity64% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

79°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 36%
Chevron down
Intermittent clouds

WindSSW 17 mph

Air QualityPoor

Wind Gusts32 mph

Humidity65%

Indoor Humidity65% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

78°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 43%
Chevron down
Intermittent clouds

WindSSW 16 mph

Air QualityFair

Wind Gusts31 mph

Humidity68%

Indoor Humidity68% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

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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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