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

St. Catharines, Ontario

55°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Catharines

Ontario

55°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
St. Catharines, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day 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 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Today's Weather

Mon, Jun 15

Breezy this morning; otherwise, less humid with periods of clouds and sunshine Hi: 68°

Tonight: Partly cloudy Lo: 57°

Current Weather

10:12 AM

55°F
RealFeel® 54°
Mostly sunny More Details
RealFeel Shade™ 48°
Wind WNW 14 mph
Wind Gusts 21 mph
Air Quality Excellent

Looking Ahead

Cooler conditions through most of the week with rounds of showers and storms

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 59°
rain drop 0%
12 PM 61°
rain drop 0%
1 PM 63°
rain drop 0%
2 PM 65°
rain drop 0%
3 PM 66°
rain drop 0%
4 PM 67°
rain drop 0%
5 PM 68°
rain drop 0%
6 PM 68°
rain drop 0%
7 PM 67°
rain drop 0%
8 PM 65°
rain drop 0%
9 PM 63°
rain drop 0%
10 PM 60°
rain drop 0%

10-Day Weather Forecast

Today

6/15

68° 57°

Breezy this morning

Night: Partly cloudy

2%

Tue

6/16

73° 57°

An afternoon shower; breezy

Showers around late

55%

Wed

6/17

72° 61°

A couple of showers; breezy

A shower and thunderstorm

66%

Thu

6/18

75° 57°

A shower and t-storm; windy

Partly cloudy

88%

Fri

6/19

72° 54°

A couple of afternoon showers

Mainly clear

62%

Sat

6/20

69° 54°

Breezy with t-storms possible

Mainly clear

35%

Sun

6/21

69° 58°

Mostly cloudy

Cloudy

25%

Mon

6/22

68° 60°

T-storms in the afternoon

An evening t-storm or two

73%

Tue

6/23

73° 59°

Partly sunny

Mainly clear

4%

Wed

6/24

73° 60°

Mostly cloudy, a little rain

Mainly clear

55%

Sun & Moon

15 hrs 22 mins
Rise 5:36 AM
Set 8:58 PM
Waxing Crescent
Rise 5:36 AM
Set 10:13 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

Severe Weather

Severe thunderstorm risk to return to the storm-weary Midwest

5 hours ago

Climate

El Niño is here, and it’s developing faster than many typically do

4 days ago

Hurricane

South faces days of flooding rain as Gulf remains tropical focus

1 hour ago

Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

Severe storms disrupt World Cup fan events across eastern U.S.

12 hours ago

Weather Forecasts

First heat wave of season to build in Northwest into Monday

4 hours ago

More Stories

Featured Stories

Hurricane

Past El Niño Atlantic hurricane seasons still had devastating storms

4 days ago

Travel

Deer are already using a wildlife bridge over a crash-prone highway

4 days ago

Astronomy

Meet the Artemis III astronauts flying in 2027

5 days ago

Weather News

Gender reveal sparked wildfire. Who’s held accountable is unusual

5 days ago

Astronomy

NASA's X-59 breaks sound barrier for the first time

5 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 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 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
© 2026 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 | Data Sources

...

...

...