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

St. Catharines, Ontario

34°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Catharines

Ontario

34°
No results found.
Try searching for a city, zip code or point of interest.
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 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

WinterCast Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Yellow Warning - Freezing Rain

Today's Weather

Wed, Feb 18

Rain will freeze on some surfaces this morning; cloudy and breezy, areas of morning fog will reduce visibility, then colder this afternoon Hi: 35°

Tonight: Areas of freezing drizzle; breezy this evening Lo: 29°

Current Weather

6:34 AM

34°F
RealFeel® 29°
Cloudy More Details
Wind ENE 5 mph
Wind Gusts 10 mph
Air Quality Poor

MINUTECAST®

Ice, some heavy, changing to rain; continuing for 53 min

Now
7:34 AM

WinterCast®

Wed Evening - Late Wed Night

Ice

Lasting 8 hours

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

7 AM 35°
rain drop 78%
8 AM 35°
rain drop 78%
9 AM 35°
rain drop 83%
10 AM 35°
rain drop 85%
11 AM 34°
rain drop 85%
12 PM 33°
rain drop 85%
1 PM 32°
rain drop 25%
2 PM 32°
rain drop 20%
3 PM 32°
rain drop 20%
4 PM 32°
rain drop 20%
5 PM 31°
rain drop 20%
6 PM 31°
rain drop 25%

10-Day Weather Forecast

Today

2/18

35° 29°

Rain and ice in the a.m.; fog

Night: Freezing drizzle; breezy

90%

Thu

2/19

38° 32°

Mostly cloudy

A bit of snow late

5%

Fri

2/20

47° 34°

Occasional rain and drizzle

Snow and rain; breezy early

90%

Sat

2/21

36° 27°

Colder; breezy in the morning

Snow and flurries at times

25%

Sun

2/22

31° 26°

Snow or flurries possible

Snow or flurries possible

30%

Mon

2/23

34° 17°

Snow and flurries at times

Partly cloudy and windy

61%

Tue

2/24

28° 19°

Intervals of clouds and sun

Mainly clear

1%

Wed

2/25

35° 32°

An afternoon shower in spots

Rain and ice in the evening

49%

Thu

2/26

37° 26°

Cloudy most of the time

Turning cloudy

25%

Fri

2/27

37° 26°

Decreasing clouds

Clear to partly cloudy

0%

Sun & Moon

10 hrs 40 mins
Rise 7:11 AM
Set 5:51 PM
Waxing Crescent
Rise 7:43 AM
Set 7:26 PM

Air Quality

See More
Air Quality Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.

Allergy Outlook

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

Top Stories

Weather News

Deadly pileups, fast-moving Plains wildfires fueled by dangerous winds

13 hours ago

Winter Weather

Weekend snowstorm risk in Northeast hinges on storm track, cold air

59 minutes ago

Winter Weather

California storm dumps feet of snow, floods SoCal major highways

17 hours ago

Winter Weather

Feet of snow to bury California mountains through next week

46 minutes ago

Climate

Winter is getting shorter across nearly 200 U.S. cities

16 hours ago

More Stories

Featured Stories

Winter Weather

‘Pothole season’ is here as winter takes its toll on roads in the East

15 hours ago

Recreation

Presidents Day marks first Free National Park day in 2026

1 day ago

Weather News

What's behind South Carolina’s recent earthquakes

18 hours ago

Weather News

Shipwreck missing since 1872 discovered at bottom of Lake Michigan

22 hours ago

Sports

Why skiing will forever be the most glamorous sport

1 day 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

...

...

...