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St. Catharines, Ontario

26°F
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St. Catharines, Ontario Weather
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Winter Center
Today WinterCast

Hourly

 Daily Radar MinuteCast® Monthly Air Quality Health & Activities

WinterCast

1 - 3 in

Mon, 1/5, 3:00 AM - Mon, 1/5, 7:00 PM

Snow

4 AM

26°
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
Snow

WindSSE 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity76%

Indoor Humidity30% (Dry)

Dew Point19° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Snow0.3

Visibility2 mi

Cloud Ceiling2000 ft

5 AM

25°
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 58%
Chevron down
Snow

WindSSE 7 mph

Air QualityFair

Wind Gusts9 mph

Humidity84%

Indoor Humidity31% (Dry)

Dew Point21° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snow0.3

Visibility2 mi

Cloud Ceiling1700 ft

6 AM

24°
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 63%
Chevron down
Snow

WindSSE 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity94%

Indoor Humidity33% (Dry)

Dew Point23° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snow0.3

Visibility2 mi

Cloud Ceiling1400 ft

7 AM

24°
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 62%
Chevron down
Snow

WindSSE 10 mph

Air QualityFair

Wind Gusts13 mph

Humidity93%

Indoor Humidity32% (Dry)

Dew Point22° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snow0.3

Visibility3 mi

Cloud Ceiling1500 ft

8 AM

25°
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 63%
Chevron down
Snow

RealFeel Shade™14°

WindSSE 9 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts12 mph

Humidity94%

Indoor Humidity33% (Dry)

Dew Point24° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Snow0.2

Visibility3 mi

Cloud Ceiling2200 ft

9 AM

27°
RealFeel® 21°
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

RealFeel Shade™21°

WindSSE 8 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts13 mph

Humidity88%

Indoor Humidity34% (Dry)

Dew Point24° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling2900 ft

10 AM

29°
RealFeel® 21°
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 59%
Chevron down
Snow

RealFeel Shade™21°

WindSSE 7 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts10 mph

Humidity83%

Indoor Humidity34% (Dry)

Dew Point25° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Snow0.3

Visibility3 mi

Cloud Ceiling3700 ft

11 AM

31°
RealFeel® 25°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™25°

WindS 8 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts10 mph

Humidity79%

Indoor Humidity35% (Dry)

Dew Point25° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling4500 ft

12 PM

32°
RealFeel® 26°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 44%
Chevron down
Cloudy

RealFeel Shade™26°

WindS 8 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts10 mph

Humidity77%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling5300 ft

1 PM

33°
RealFeel® 27°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

RealFeel Shade™27°

WindS 9 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts10 mph

Humidity76%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling6100 ft

2 PM

34°
RealFeel® 27°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

RealFeel Shade™27°

WindSSW 9 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts12 mph

Humidity77%

Indoor Humidity36% (Dry)

Dew Point28° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling5300 ft

3 PM

35°
RealFeel® 27°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 40%
Chevron down
Cloudy

RealFeel Shade™27°

WindSW 10 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts15 mph

Humidity75%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling4500 ft

4 PM

34°
RealFeel® 22°
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 75%
Chevron down
Snow

RealFeel Shade™22°

WindSW 12 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts18 mph

Humidity81%

Indoor Humidity38% (Dry)

Dew Point29° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snow0.3

Visibility3 mi

Cloud Ceiling3700 ft

5 PM

34°
RealFeel® 21°
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 75%
Chevron down
Snow

WindSW 12 mph

Air QualityFair

Wind Gusts16 mph

Humidity84%

Indoor Humidity38% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snow0.2

Visibility3 mi

Cloud Ceiling3200 ft

6 PM

33°
RealFeel® 21°
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 75%
Chevron down
Snow

WindWSW 10 mph

Air QualityFair

Wind Gusts15 mph

Humidity85%

Indoor Humidity38% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snow0.3

Visibility3 mi

Cloud Ceiling2800 ft

7 PM

33°
RealFeel® 24°
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 9%
Chevron down
Cloudy

WindWSW 10 mph

Air QualityFair

Wind Gusts13 mph

Humidity89%

Indoor Humidity38% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling2400 ft

8 PM

32°
RealFeel® 24°
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 6%
Chevron down
Cloudy

WindWSW 9 mph

Air QualityFair

Wind Gusts12 mph

Humidity90%

Indoor Humidity38% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling2200 ft

9 PM

32°
RealFeel® 25°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 6%
Chevron down
Cloudy

WindWSW 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity91%

Indoor Humidity38% (Dry)

Dew Point29° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling2100 ft

10 PM

31°
RealFeel® 25°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 6%
Chevron down
Cloudy

WindWSW 7 mph

Air QualityPoor

Wind Gusts9 mph

Humidity93%

Indoor Humidity38% (Dry)

Dew Point29° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling2000 ft

11 PM

30°
RealFeel® 25°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 6%
Chevron down
Cloudy

WindWSW 7 mph

Air QualityPoor

Wind Gusts8 mph

Humidity93%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling2000 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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