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St. Catharines, Ontario

51°F
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St. Catharines

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51°
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St. Catharines, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Hourly

 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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6 AM

52°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 59%
Chevron down
Mostly cloudy w/ showers

WindWNW 12 mph

Air QualityExcellent

Wind Gusts18 mph

Humidity76%

Indoor Humidity43% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover63%

Rain0.01 in

Visibility10 mi

Cloud Ceiling9000 ft

7 AM

51°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 55%
Chevron down
Mostly cloudy w/ showers

WindWNW 13 mph

Air QualityExcellent

Wind Gusts21 mph

Humidity78%

Indoor Humidity42% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover57%

Visibility10 mi

Cloud Ceiling10000 ft

8 AM

51°
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 25%
Chevron down
Mostly sunny

RealFeel Shade™46°

WindWNW 12 mph

Air QualityExcellent

Max UV Index0.6 (Low)

Wind Gusts18 mph

Humidity83%

Indoor Humidity46% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover15%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

54°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny

RealFeel Shade™47°

WindWNW 13 mph

Air QualityExcellent

Max UV Index1.4 (Low)

Wind Gusts23 mph

Humidity77%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover20%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

56°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny

RealFeel Shade™49°

WindWNW 15 mph

Air QualityExcellent

Max UV Index2.2 (Low)

Wind Gusts28 mph

Humidity69%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover24%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

58°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny

RealFeel Shade™51°

WindWNW 17 mph

Air QualityExcellent

Max UV Index3.0 (Moderate)

Wind Gusts33 mph

Humidity62%

Indoor Humidity44% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

60°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny

RealFeel Shade™53°

WindWNW 17 mph

Air QualityExcellent

Max UV Index3.6 (Moderate)

Wind Gusts36 mph

Humidity55%

Indoor Humidity41% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover21%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

61°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 25%
Chevron down
Mostly sunny

RealFeel Shade™55°

WindWNW 18 mph

Air QualityExcellent

Max UV Index3.9 (Moderate)

Wind Gusts38 mph

Humidity50%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover15%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

62°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 42%
Chevron down
Partly sunny w/ showers

RealFeel Shade™54°

WindWNW 18 mph

Air QualityExcellent

Max UV Index3.6 (Moderate)

Wind Gusts40 mph

Humidity47%

Indoor Humidity38% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Rain0.01 in

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

63°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 38%
Chevron down
Sunny

RealFeel Shade™58°

WindWNW 18 mph

Air QualityExcellent

Max UV Index3.0 (Moderate)

Wind Gusts39 mph

Humidity42%

Indoor Humidity36% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover5%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

62°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 29%
Chevron down
Sunny

RealFeel Shade™56°

WindWNW 18 mph

Air QualityExcellent

Max UV Index2.2 (Low)

Wind Gusts38 mph

Humidity43%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover3%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

61°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 17%
Chevron down
Sunny

RealFeel Shade™55°

WindWNW 18 mph

Air QualityExcellent

Max UV Index1.4 (Low)

Wind Gusts38 mph

Humidity44%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover3%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

59°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 17%
Chevron down
Sunny

RealFeel Shade™53°

WindNW 17 mph

Air QualityExcellent

Max UV Index0.6 (Low)

Wind Gusts37 mph

Humidity46%

Indoor Humidity34% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover6%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

57°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 11%
Chevron down
Clear

WindNW 16 mph

Air QualityExcellent

Wind Gusts31 mph

Humidity50%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

54°
RealFeel® 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindNW 14 mph

Air QualityExcellent

Wind Gusts25 mph

Humidity54%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

52°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindNW 13 mph

Air QualityExcellent

Wind Gusts22 mph

Humidity59%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

51°
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindNW 10 mph

Air QualityExcellent

Wind Gusts17 mph

Humidity61%

Indoor Humidity34% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover4%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

50°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindNW 9 mph

Air QualityExcellent

Wind Gusts14 mph

Humidity64%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for St. Catharines

AccuWeather's hourly forecast for St. Catharines provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 52° with a RealFeel® of 44°, mostly cloudy w/ showers with a 59% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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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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