Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™

St. Catharines, Ontario

63°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Catharines

Ontario

63°
No results found.
Try searching for a city, zip code or point of interest.
settings
St. Catharines, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today

Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Today's Weather

Tue, Aug 26

Intervals of clouds and sunshine with a thundershower; there can be waterspouts near the shore Hi: 70°

Tonight: A couple of showers this evening; otherwise, partly cloudy Lo: 54°

Current Weather

10:02 AM

63°F
RealFeel® 64°
Mostly sunny More Details
RealFeel Shade™ 59°
Wind WSW 12 mph
Wind Gusts 12 mph
Air Quality Excellent

St. Catharines Weather Radar

St. Catharines Weather Radar
Static Radar Temporarily Unavailable
Thank you for your patience as we work to get everything up and running again.
Refresh Page
Clouds
Temperature

Hourly Weather

11 AM 66°
rain drop 43%
12 PM 68°
rain drop 47%
1 PM 69°
rain drop 51%
2 PM 70°
rain drop 40%
3 PM 70°
rain drop 34%
4 PM 68°
rain drop 37%
5 PM 66°
rain drop 43%
6 PM 66°
rain drop 47%
7 PM 64°
rain drop 51%
8 PM 62°
rain drop 51%
9 PM 60°
rain drop 47%
10 PM 59°
rain drop 41%

10-Day Weather Forecast

Today

8/26

70° 54°

Clouds and sun, a t-shower

Night: A couple of evening showers

80%

Wed

8/27

73° 58°

Nice with plenty of sun

Clear to partly cloudy

2%

Thu

8/28

71° 55°

Windy; rain in the afternoon

Cloudy with showers around

83%

Fri

8/29

67° 54°

A couple of showers possible

A shower early; mainly clear

30%

Sat

8/30

70° 55°

Partly sunny and nice

Mainly clear

2%

Sun

8/31

75° 56°

Mostly sunny and nice

Mainly clear

2%

Mon

9/1

75° 57°

A couple of morning showers

Clear

63%

Tue

9/2

78° 62°

Mostly sunny

Partly cloudy

0%

Wed

9/3

79° 64°

Partly sunny

Partly cloudy

1%

Thu

9/4

77° 62°

Cloudy, a shower in the p.m.

Periods of rain

49%

Sun & Moon

13 hrs 28 mins
Rise 6:34 AM
Set 8:02 PM
Waxing Crescent
Rise 10:04 AM
Set 9:20 PM

Air Quality

See More
Air Quality Excellent

The air quality is ideal for most individuals; enjoy your normal outdoor activities.

Allergy Outlook

See All
Dust & Dander Low Data is not supported in this location

Top Stories

Weather Forecasts

Taste of fall to visit Great Lakes, Northeast this week

4 hours ago

Weather News

Haboob slams Phoenix, causing damage, airport delays and power outages

28 minutes ago

Weather Forecasts

Labor Day weekend forecast: Heat, storms may disrupt holiday plans

4 hours ago

Hurricane

Deadly Tropical Storm Kajiki causes heavy flooding in Vietnam

3 hours ago

Severe Weather

Rain, flooding risk to increase in the Rockies and southern Plains

4 hours ago

More Stories

Featured Stories

Sports

The pitcher who was struck by lightning and still finished the game

1 day ago

Live Blog

Why are there so many leaves falling? Is this an early autumn?

LATEST ENTRY

Why are there so many leaves falling? Is this an early autumn?

3 days ago

Travel

Beaches in tourist hotspot shut after rare, venomous sea slugs found

4 days ago

Climate

Why might a warming world makes cloudbursts even more dangerous?

5 days ago

Weather News

New dinosaur species with striking sail-like back discovered

3 days ago

World North America Canada Ontario St. Catharines

Weather Near St. Catharines:

  • Brampton, Ontario
  • Mississauga Valley, Ontario
  • Toronto, Ontario
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2025 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information

...

...

...