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St. Catharines, Ontario

31°F
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St. Catharines

Ontario

31°
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St. Catharines, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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WinterCast

Little to no accumulation

Mon, 1/12, 9:00 AM - Mon, 1/12, 1:00 PM

Snow

7 AM

33°
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 19%
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Cloudy

WindSW 18 mph

Air QualityFair

Wind Gusts24 mph

Humidity69%

Indoor Humidity33% (Dry)

Dew Point24° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling1500 ft

8 AM

33°
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 19%
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Cloudy

RealFeel Shade™17°

WindWSW 20 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts27 mph

Humidity69%

Indoor Humidity34% (Dry)

Dew Point24° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling2200 ft

9 AM

34°
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 24%
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Cloudy

RealFeel Shade™18°

WindWSW 21 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts30 mph

Humidity64%

Indoor Humidity33% (Dry)

Dew Point23° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover92%

Visibility10 mi

Cloud Ceiling2900 ft

10 AM

34°
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 43%
Chevron down
Cloudy

RealFeel Shade™18°

WindWSW 22 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts33 mph

Humidity61%

Indoor Humidity32% (Dry)

Dew Point22° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling3700 ft

11 AM

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 45%
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Flurries

RealFeel Shade™18°

WindWSW 22 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts35 mph

Humidity60%

Indoor Humidity32% (Dry)

Dew Point22° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover91%

Snowtrace

Visibility10 mi

Cloud Ceiling3200 ft

12 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 47%
Chevron down
Flurries

RealFeel Shade™18°

WindWSW 22 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts35 mph

Humidity59%

Indoor Humidity32% (Dry)

Dew Point22° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Snowtrace

Visibility10 mi

Cloud Ceiling2700 ft

1 PM

34°
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 25%
Chevron down
Cloudy

RealFeel Shade™18°

WindWSW 22 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts35 mph

Humidity61%

Indoor Humidity32% (Dry)

Dew Point22° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling2300 ft

2 PM

33°
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 20%
Chevron down
Cloudy

RealFeel Shade™16°

WindW 23 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts38 mph

Humidity62%

Indoor Humidity32% (Dry)

Dew Point21° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling2300 ft

3 PM

32°
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 20%
Chevron down
Cloudy

RealFeel Shade™13°

WindWNW 27 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts43 mph

Humidity61%

Indoor Humidity31% (Dry)

Dew Point20° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover91%

Visibility10 mi

Cloud Ceiling2400 ft

4 PM

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 20%
Chevron down
Cloudy

RealFeel Shade™10°

WindWNW 27 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts46 mph

Humidity64%

Indoor Humidity30% (Dry)

Dew Point19° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover91%

Visibility10 mi

Cloud Ceiling2400 ft

5 PM

30°
RealFeel® 9°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™9°

WindWNW 25 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts44 mph

Humidity65%

Indoor Humidity30% (Dry)

Dew Point19° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling2200 ft

6 PM

29°
RealFeel® 9°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 15%
Chevron down
Cloudy

WindWNW 24 mph

Air QualityFair

Wind Gusts41 mph

Humidity67%

Indoor Humidity30% (Dry)

Dew Point19° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling2100 ft

7 PM

28°
RealFeel® 8°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 5%
Chevron down
Cloudy

WindWNW 23 mph

Air QualityFair

Wind Gusts38 mph

Humidity71%

Indoor Humidity30% (Dry)

Dew Point20° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling2000 ft

8 PM

29°
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 5%
Chevron down
Mostly cloudy

WindWNW 22 mph

Air QualityFair

Wind Gusts37 mph

Humidity68%

Indoor Humidity30% (Dry)

Dew Point20° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover87%

Visibility10 mi

Cloud Ceiling2500 ft

9 PM

30°
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 5%
Chevron down
Intermittent clouds

WindWNW 21 mph

Air QualityFair

Wind Gusts32 mph

Humidity66%

Indoor Humidity30% (Dry)

Dew Point20° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover72%

Visibility10 mi

Cloud Ceiling3100 ft

10 PM

30°
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 5%
Chevron down
Intermittent clouds

WindWNW 20 mph

Air QualityFair

Wind Gusts31 mph

Humidity65%

Indoor Humidity30% (Dry)

Dew Point20° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling3700 ft

11 PM

30°
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 5%
Chevron down
Intermittent clouds

WindWNW 18 mph

Air QualityFair

Wind Gusts28 mph

Humidity66%

Indoor Humidity31% (Dry)

Dew Point20° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover71%

Visibility10 mi

Cloud Ceiling7300 ft

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World North America Canada Ontario St. Catharines

Weather Near St. Catharines:

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