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St. Catharines, Ontario

50°F
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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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Today

Hourly

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

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1 PM

51°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 19%
Chevron down
Mostly cloudy

RealFeel Shade™49°

WindW 6 mph

Air QualityFair

Max UV Index4.4 (Moderate)

Wind Gusts8 mph

Humidity57%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover81%

Visibility10 mi

Cloud Ceiling14700 ft

2 PM

52°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 17%
Chevron down
Intermittent clouds

RealFeel Shade™49°

WindW 7 mph

Air QualityFair

Max UV Index3.7 (Moderate)

Wind Gusts9 mph

Humidity55%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover74%

Visibility10 mi

Cloud Ceiling7100 ft

3 PM

52°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 17%
Chevron down
Intermittent clouds

RealFeel Shade™49°

WindW 7 mph

Air QualityFair

Max UV Index3.0 (Moderate)

Wind Gusts8 mph

Humidity56%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6700 ft

4 PM

52°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 22%
Chevron down
Intermittent clouds

RealFeel Shade™49°

WindWSW 7 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts8 mph

Humidity57%

Indoor Humidity32% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6400 ft

5 PM

51°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 34%
Chevron down
Intermittent clouds

RealFeel Shade™48°

WindWSW 7 mph

Air QualityFair

Max UV Index1.4 (Low)

Wind Gusts10 mph

Humidity62%

Indoor Humidity34% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6100 ft

6 PM

50°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 37%
Chevron down
Intermittent clouds

RealFeel Shade™49°

WindSW 7 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts8 mph

Humidity66%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6100 ft

7 PM

49°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 40%
Chevron down
Mostly cloudy w/ showers

RealFeel Shade™45°

WindSW 7 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts7 mph

Humidity70%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover70%

Rain0.01 in

Visibility10 mi

Cloud Ceiling6100 ft

8 PM

46°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 41%
Chevron down
Intermittent clouds

RealFeel Shade™43°

WindW 6 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts7 mph

Humidity83%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6200 ft

9 PM

44°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 47%
Chevron down
Intermittent clouds

WindWSW 5 mph

Air QualityFair

Wind Gusts5 mph

Humidity89%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6500 ft

10 PM

44°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 51%
Chevron down
Mostly cloudy w/ showers

WindSW 4 mph

Air QualityFair

Wind Gusts4 mph

Humidity91%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Rain0.02 in

Visibility6 mi

Cloud Ceiling6800 ft

11 PM

43°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 36%
Chevron down
Intermittent clouds

WindSW 4 mph

Air QualityFair

Wind Gusts4 mph

Humidity92%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling7100 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 51° with a RealFeel® of 57°, mostly cloudy with a 19% 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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