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St Catharines, Ontario

70°F
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St Catharines

Ontario

70°
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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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12 PM

72°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Cloudy
alerts

Special Weather Statement

6:00 AM Saturday - 7:00 PM Saturday

RealFeel Shade™67°

WindS 21 mph

Air QualityFair

Max UV Index1.8 (Low)

Wind Gusts31 mph

Humidity51%

Indoor Humidity51% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling8800 ft

1 PM

72°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 1%
Chevron down
Cloudy
alerts

Special Weather Statement

6:00 AM Saturday - 7:00 PM Saturday

RealFeel Shade™67°

WindSSW 21 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts32 mph

Humidity50%

Indoor Humidity50% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling7500 ft

2 PM

72°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 32%
Chevron down
Cloudy
alerts

Special Weather Statement

6:00 AM Saturday - 7:00 PM Saturday

RealFeel Shade™68°

WindSSW 22 mph

Air QualityFair

Max UV Index1.7 (Low)

Wind Gusts38 mph

Humidity53%

Indoor Humidity53% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling6300 ft

3 PM

71°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 32%
Chevron down
Cloudy
alerts

Special Weather Statement

6:00 AM Saturday - 7:00 PM Saturday

RealFeel Shade™66°

WindSW 21 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts36 mph

Humidity57%

Indoor Humidity57% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling4600 ft

4 PM

68°
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 37%
Chevron down
Cloudy
alerts

Special Weather Statement

6:00 AM Saturday - 7:00 PM Saturday

RealFeel Shade™64°

WindSW 17 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts33 mph

Humidity66%

Indoor Humidity66% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling3000 ft

5 PM

65°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
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Cloudy
alerts

Special Weather Statement

6:00 AM Saturday - 7:00 PM Saturday

RealFeel Shade™61°

WindSW 16 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts30 mph

Humidity75%

Indoor Humidity67% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling1400 ft

6 PM

62°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 59%
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Thunderstorms
alerts

Special Weather Statement

6:00 AM Saturday - 7:00 PM Saturday

RealFeel Shade™53°

WindWSW 16 mph

Air QualityExcellent

Max UV Index0.3 (Low)

Wind Gusts29 mph

Humidity77%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.13 in

Visibility4 mi

Cloud Ceiling1500 ft

7 PM

59°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 59%
Chevron down
Thunderstorms

RealFeel Shade™49°

WindW 16 mph

Air QualityExcellent

Max UV Index0.1 (Low)

Wind Gusts27 mph

Humidity84%

Indoor Humidity62% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.13 in

Visibility4 mi

Cloud Ceiling1500 ft

8 PM

56°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 43%
Chevron down
Cloudy

RealFeel Shade™50°

WindW 13 mph

Air QualityExcellent

Max UV Index0.0 (Low)

Wind Gusts20 mph

Humidity81%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling1600 ft

9 PM

53°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms

WindW 12 mph

Air QualityExcellent

Wind Gusts17 mph

Humidity83%

Indoor Humidity49% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Rain0.05 in

Visibility5 mi

Cloud Ceiling3400 ft

10 PM

50°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

WindW 10 mph

Air QualityExcellent

Wind Gusts13 mph

Humidity84%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling5200 ft

11 PM

49°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 33%
Chevron down
Cloudy

WindWNW 9 mph

Air QualityExcellent

Wind Gusts10 mph

Humidity83%

Indoor Humidity41% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

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 72° with a RealFeel® of 69°, cloudy with a 0% 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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Weather Near St Catharines:

  • Brampton, Ontario
  • Mississauga Valley, Ontario
  • Toronto, Ontario
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