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St. Marys, Ontario

30°F
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St. Marys

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St. Marys, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center
Today WinterCast

Hourly

 Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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WinterCast

Snow

Fri, 3/13, 8:00 AM - Sat, 3/14, 1:00 AM

Snow

Ice

Sun, 3/15, 11:00 AM - Sun, 3/15, 1:00 PM

Ice

11 AM

30°
RealFeel® 10°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 74%
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Flurries
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

RealFeel Shade™10°

WindSE 25 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts48 mph

Humidity95%

Indoor Humidity38% (Dry)

Dew Point29° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Snowtrace

Visibility10 mi

Cloud Ceiling2200 ft

12 PM

31°
RealFeel® 11°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 74%
Chevron down
Flurries
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

RealFeel Shade™11°

WindSE 28 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts46 mph

Humidity88%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Snowtrace

Visibility10 mi

Cloud Ceiling2100 ft

1 PM

33°
RealFeel® 14°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

RealFeel Shade™13°

WindSSE 28 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts45 mph

Humidity86%

Indoor Humidity38% (Dry)

Dew Point29° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling5800 ft

2 PM

34°
RealFeel® 16°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 34%
Chevron down
Intermittent clouds
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

RealFeel Shade™14°

WindSSE 29 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts45 mph

Humidity84%

Indoor Humidity38% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling5700 ft

3 PM

35°
RealFeel® 18°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 34%
Chevron down
Intermittent clouds
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

RealFeel Shade™16°

WindS 27 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts40 mph

Humidity84%

Indoor Humidity39% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling5700 ft

4 PM

36°
RealFeel® 19°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 40%
Chevron down
Intermittent clouds
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

RealFeel Shade™18°

WindSW 24 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts40 mph

Humidity84%

Indoor Humidity40% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling1900 ft

5 PM

37°
RealFeel® 18°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 58%
Chevron down
Rain and snow
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

RealFeel Shade™18°

WindWSW 23 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts44 mph

Humidity82%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.01 in

Snow0.12 in

Visibility5 mi

Cloud Ceiling1900 ft

6 PM

35°
RealFeel® 15°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 57%
Chevron down
Rain and snow
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

RealFeel Shade™15°

WindWSW 24 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts45 mph

Humidity85%

Indoor Humidity40% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover70%

Rain0.01 in

Snow0.11 in

Visibility5 mi

Cloud Ceiling2000 ft

7 PM

34°
RealFeel® 16°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 49%
Chevron down
Intermittent clouds
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

RealFeel Shade™16°

WindSW 24 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts46 mph

Humidity87%

Indoor Humidity39% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling2000 ft

8 PM

36°
RealFeel® 19°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 47%
Chevron down
Cloudy
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

WindSW 22 mph

Air QualityFair

Wind Gusts41 mph

Humidity78%

Indoor Humidity38% (Dry)

Dew Point29° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling2000 ft

9 PM

34°
RealFeel® 17°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

WindWSW 23 mph

Air QualityFair

Wind Gusts41 mph

Humidity80%

Indoor Humidity37% (Dry)

Dew Point29° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility5 mi

Cloud Ceiling2000 ft

10 PM

33°
RealFeel® 13°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 55%
Chevron down
Snow
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

WindWSW 23 mph

Air QualityFair

Wind Gusts43 mph

Humidity81%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snow0.17 in

Visibility2 mi

Cloud Ceiling2000 ft

11 PM

33°
RealFeel® 12°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 62%
Chevron down
Snow
alerts

Yellow Warning - Winter Storm

10:00 AM Friday - 9:00 AM Saturday

WindWSW 24 mph

Air QualityFair

Wind Gusts44 mph

Humidity81%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snow0.16 in

Visibility3 mi

Cloud Ceiling2000 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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