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St. Catharines, Ontario

44°F
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St. Catharines

Ontario

44°
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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 AM

44°
RealFeel® 38°
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 cloudy

WindS 9 mph

Air QualityFair

Wind Gusts10 mph

Humidity66%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover88%

Visibility10 mi

Cloud Ceiling14700 ft

1 AM

44°
RealFeel® 37°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

WindS 9 mph

Air QualityFair

Wind Gusts10 mph

Humidity73%

Indoor Humidity30% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover91%

Visibility10 mi

Cloud Ceiling14700 ft

2 AM

43°
RealFeel® 37°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

WindS 9 mph

Air QualityFair

Wind Gusts10 mph

Humidity80%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling14700 ft

3 AM

43°
RealFeel® 37°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

WindS 9 mph

Air QualityFair

Wind Gusts9 mph

Humidity83%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling19800 ft

4 AM

43°
RealFeel® 37°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

WindS 9 mph

Air QualityFair

Wind Gusts9 mph

Humidity85%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover92%

Visibility10 mi

Cloud Ceiling24900 ft

5 AM

43°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

WindS 9 mph

Air QualityFair

Wind Gusts9 mph

Humidity87%

Indoor Humidity35% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

44°
RealFeel® 38°
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 cloudy

RealFeel Shade™38°

WindS 8 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts9 mph

Humidity89%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover83%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

45°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 2%
Chevron down
Intermittent clouds

RealFeel Shade™41°

WindS 8 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts9 mph

Humidity91%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover73%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

48°
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™43°

WindS 8 mph

Air QualityFair

Max UV Index1.8 (Low)

Wind Gusts9 mph

Humidity86%

Indoor Humidity42% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

51°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™47°

WindSSW 8 mph

Air QualityFair

Max UV Index2.7 (Moderate)

Wind Gusts9 mph

Humidity82%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover60%

Visibility10 mi

Cloud Ceiling24900 ft

10 AM

54°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™49°

WindSSW 9 mph

Air QualityFair

Max UV Index3.5 (Moderate)

Wind Gusts10 mph

Humidity79%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover60%

Visibility10 mi

Cloud Ceiling19800 ft

11 AM

57°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™52°

WindSSW 10 mph

Air QualityFair

Max UV Index4.0 (Moderate)

Wind Gusts12 mph

Humidity74%

Indoor Humidity49% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling14700 ft

12 PM

59°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™54°

WindSSW 12 mph

Air QualityFair

Max UV Index4.9 (Moderate)

Wind Gusts14 mph

Humidity69%

Indoor Humidity50% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

1 PM

61°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 10%
Chevron down
Intermittent clouds

RealFeel Shade™56°

WindSW 13 mph

Air QualityFair

Max UV Index5.4 (Moderate)

Wind Gusts15 mph

Humidity66%

Indoor Humidity51% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

2 PM

61°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms

RealFeel Shade™53°

WindSW 14 mph

Air QualityFair

Max UV Index1.8 (Low)

Wind Gusts17 mph

Humidity68%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

3 PM

62°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™57°

WindSW 15 mph

Air QualityFair

Max UV Index1.7 (Low)

Wind Gusts20 mph

Humidity65%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling4000 ft

4 PM

63°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 44%
Chevron down
Cloudy

RealFeel Shade™58°

WindSW 16 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts22 mph

Humidity63%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling11300 ft

5 PM

62°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™56°

WindSW 17 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts24 mph

Humidity65%

Indoor Humidity52% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling9700 ft

6 PM

60°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 54%
Chevron down
Thunderstorms

RealFeel Shade™52°

WindSW 16 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts24 mph

Humidity71%

Indoor Humidity54% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

7 PM

58°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™53°

WindSW 14 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts24 mph

Humidity75%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling7900 ft

8 PM

57°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 3%
Chevron down
Partly sunny

RealFeel Shade™52°

WindSW 13 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts24 mph

Humidity77%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

55°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 3%
Chevron down
Partly cloudy

WindSW 12 mph

Air QualityFair

Wind Gusts20 mph

Humidity80%

Indoor Humidity51% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

54°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 3%
Chevron down
Partly cloudy

WindSW 10 mph

Air QualityFair

Wind Gusts15 mph

Humidity82%

Indoor Humidity50% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

54°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 3%
Chevron down
Partly cloudy

WindSW 9 mph

Air QualityFair

Wind Gusts10 mph

Humidity82%

Indoor Humidity49% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

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 44° with a RealFeel® of 38°, mostly 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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World North America Canada Ontario St. Catharines

Weather Near St. Catharines:

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