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St. Catharines, Ontario

3°F
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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

A coating to an inch

Mon, 2/2, 10:00 PM - Tue, 2/3, 12:00 PM

Snow

7 AM

8°
RealFeel® -2°
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 0%
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Mostly clear

WindSW 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity84%

Indoor Humidity19% (Extremely Dry)

Dew Point4° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover15%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

11°
RealFeel® 3°
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 0%
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Mostly sunny

RealFeel Shade™3°

WindSW 8 mph

Air QualityPoor

Max UV Index0.7 (Low)

Wind Gusts12 mph

Humidity77%

Indoor Humidity20% (Very Dry)

Dew Point5° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover16%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

14°
RealFeel® 7°
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 0%
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Mostly sunny

RealFeel Shade™4°

WindSW 8 mph

Air QualityFair

Max UV Index1.4 (Low)

Wind Gusts14 mph

Humidity72%

Indoor Humidity21% (Very Dry)

Dew Point7° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover19%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

16°
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 0%
Chevron down
Mostly sunny

RealFeel Shade™5°

WindSW 9 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts15 mph

Humidity70%

Indoor Humidity22% (Very Dry)

Dew Point8° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

19°
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 0%
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Partly sunny

RealFeel Shade™8°

WindSW 10 mph

Air QualityFair

Max UV Index2.4 (Low)

Wind Gusts16 mph

Humidity67%

Indoor Humidity24% (Very Dry)

Dew Point10° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover33%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

22°
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 0%
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Partly sunny

RealFeel Shade™10°

WindSW 12 mph

Air QualityFair

Max UV Index2.5 (Low)

Wind Gusts18 mph

Humidity65%

Indoor Humidity25% (Very Dry)

Dew Point12° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover44%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

24°
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 1%
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Intermittent clouds

RealFeel Shade™11°

WindSW 12 mph

Air QualityFair

Max UV Index2.4 (Low)

Wind Gusts21 mph

Humidity65%

Indoor Humidity26% (Very Dry)

Dew Point13° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover56%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

24°
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 1%
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Intermittent clouds

RealFeel Shade™13°

WindSW 10 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts21 mph

Humidity65%

Indoor Humidity26% (Very Dry)

Dew Point14° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover68%

Visibility10 mi

Cloud Ceiling24900 ft

3 PM

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 1%
Chevron down
Mostly cloudy

RealFeel Shade™16°

WindSW 10 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts20 mph

Humidity64%

Indoor Humidity27% (Very Dry)

Dew Point14° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover80%

Visibility10 mi

Cloud Ceiling19800 ft

4 PM

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 1%
Chevron down
Cloudy

RealFeel Shade™16°

WindSW 9 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts18 mph

Humidity66%

Indoor Humidity27% (Very Dry)

Dew Point15° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling14700 ft

5 PM

24°
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 1%
Chevron down
Cloudy

RealFeel Shade™15°

WindSW 9 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts16 mph

Humidity67%

Indoor Humidity27% (Very Dry)

Dew Point15° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling12100 ft

6 PM

23°
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 4%
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Cloudy

WindSSW 9 mph

Air QualityFair

Wind Gusts15 mph

Humidity67%

Indoor Humidity26% (Very Dry)

Dew Point14° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling9600 ft

7 PM

22°
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 19%
Chevron down
Cloudy

WindSSW 9 mph

Air QualityFair

Wind Gusts13 mph

Humidity71%

Indoor Humidity26% (Very Dry)

Dew Point14° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling7100 ft

8 PM

23°
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 19%
Chevron down
Cloudy

WindSSW 9 mph

Air QualityFair

Wind Gusts13 mph

Humidity70%

Indoor Humidity27% (Very Dry)

Dew Point14° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling5900 ft

9 PM

25°
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 24%
Chevron down
Cloudy

WindSSW 9 mph

Air QualityFair

Wind Gusts12 mph

Humidity69%

Indoor Humidity28% (Very Dry)

Dew Point16° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling4800 ft

10 PM

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 44%
Chevron down
Flurries

WindSW 10 mph

Air QualityFair

Wind Gusts12 mph

Humidity73%

Indoor Humidity28% (Very Dry)

Dew Point17° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snow0.05 in

Visibility6 mi

Cloud Ceiling3700 ft

11 PM

24°
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 44%
Chevron down
Flurries

WindSW 10 mph

Air QualityFair

Wind Gusts13 mph

Humidity74%

Indoor Humidity29% (Very Dry)

Dew Point17° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snow0.05 in

Visibility6 mi

Cloud Ceiling3100 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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