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St. Catharines, Ontario

30°F
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St. Catharines

Ontario

30°
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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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Today WinterCast

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WinterCast

A coating to an inch

Sun, 3/15, 5:00 AM - Sun, 3/15, 9:00 AM

Snow

Trace - 0.05 in

Sun, 3/15, 8:00 AM - Sun, 3/15, 9:00 AM

Ice

12 PM

34°
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 37%
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Mostly cloudy

RealFeel Shade™17°

WindWNW 22 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts33 mph

Humidity57%

Indoor Humidity31% (Dry)

Dew Point20° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover87%

Visibility10 mi

Cloud Ceiling2500 ft

1 PM

35°
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%
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Flurries

RealFeel Shade™18°

WindWNW 21 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts33 mph

Humidity59%

Indoor Humidity32% (Dry)

Dew Point22° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover91%

Snowtrace

Visibility10 mi

Cloud Ceiling3100 ft

2 PM

36°
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 36%
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Cloudy

RealFeel Shade™20°

WindWNW 21 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts36 mph

Humidity57%

Indoor Humidity32% (Dry)

Dew Point22° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling3700 ft

3 PM

36°
RealFeel® 23°
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 32%
Chevron down
Mostly cloudy

RealFeel Shade™21°

WindW 20 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts35 mph

Humidity55%

Indoor Humidity32% (Dry)

Dew Point22° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover78%

Visibility10 mi

Cloud Ceiling7300 ft

4 PM

37°
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 32%
Chevron down
Intermittent clouds

RealFeel Shade™22°

WindW 20 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts32 mph

Humidity53%

Indoor Humidity32% (Dry)

Dew Point21° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover66%

Visibility10 mi

Cloud Ceiling11000 ft

5 PM

36°
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 32%
Chevron down
Intermittent clouds

RealFeel Shade™22°

WindW 18 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts31 mph

Humidity54%

Indoor Humidity31% (Dry)

Dew Point21° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover54%

Visibility10 mi

Cloud Ceiling14700 ft

6 PM

36°
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 32%
Chevron down
Partly sunny

RealFeel Shade™24°

WindW 16 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts27 mph

Humidity54%

Indoor Humidity31% (Dry)

Dew Point21° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover42%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

35°
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 21%
Chevron down
Mostly sunny

RealFeel Shade™24°

WindWNW 13 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts20 mph

Humidity55%

Indoor Humidity31% (Dry)

Dew Point20° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover28%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

35°
RealFeel® 28°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindWNW 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity56%

Indoor Humidity31% (Dry)

Dew Point20° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

32°
RealFeel® 28°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindWNW 6 mph

Air QualityFair

Wind Gusts8 mph

Humidity63%

Indoor Humidity31% (Dry)

Dew Point21° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

30°
RealFeel® 28°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindNW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity70%

Indoor Humidity31% (Dry)

Dew Point21° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

28°
RealFeel® 27°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindENE 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity74%

Indoor Humidity31% (Dry)

Dew Point21° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 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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