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

St. Catharines, Ontario

36°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Catharines

Ontario

36°
No results found.
Try searching for a city, zip code or point of interest.
Create Account Unlock extended daily forecasts and additional saved locations — all with your free account.
Let's Go Chevron right
Have an account already? Login
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 WinterCast

Hourly

 Daily Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

WinterCast

Little to no accumulation

Sun, 1/11, 8:00 PM - Sun, 1/11, 10:00 PM

Snow

5 AM

34°
RealFeel® 27°
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

WindSW 9 mph

Air QualityFair

Wind Gusts10 mph

Humidity89%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility5 mi

Cloud Ceiling2000 ft

6 AM

34°
RealFeel® 27°
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

WindSW 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity90%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility5 mi

Cloud Ceiling2000 ft

7 AM

33°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

WindSSW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity90%

Indoor Humidity39% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling1000 ft

8 AM

35°
RealFeel® 32°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

RealFeel Shade™32°

WindSSW 6 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts7 mph

Humidity91%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling10200 ft

9 AM

36°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny

RealFeel Shade™33°

WindS 6 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts9 mph

Humidity91%

Indoor Humidity42% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover49%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

38°
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
Partly sunny

RealFeel Shade™35°

WindS 6 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts12 mph

Humidity88%

Indoor Humidity43% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

40°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny

RealFeel Shade™38°

WindSSE 6 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts12 mph

Humidity82%

Indoor Humidity30% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

43°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny

RealFeel Shade™39°

WindSSE 7 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts12 mph

Humidity77%

Indoor Humidity30% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

44°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

RealFeel Shade™40°

WindSSE 7 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts13 mph

Humidity74%

Indoor Humidity30% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

45°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

RealFeel Shade™43°

WindSSE 7 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts12 mph

Humidity71%

Indoor Humidity30% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

43°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

RealFeel Shade™41°

WindSSE 7 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts10 mph

Humidity74%

Indoor Humidity30% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling25900 ft

4 PM

41°
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

RealFeel Shade™38°

WindSE 7 mph

Air QualityPoor

Max UV Index0.2 (Low)

Wind Gusts10 mph

Humidity78%

Indoor Humidity43% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling23800 ft

5 PM

40°
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

WindSE 7 mph

Air QualityPoor

Wind Gusts13 mph

Humidity78%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling22100 ft

6 PM

39°
RealFeel® 35°
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

WindSE 6 mph

Air QualityPoor

Wind Gusts13 mph

Humidity80%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling20300 ft

7 PM

37°
RealFeel® 33°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 27%
Chevron down
Cloudy

WindSE 6 mph

Air QualityPoor

Wind Gusts10 mph

Humidity85%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling18500 ft

8 PM

38°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 27%
Chevron down
Cloudy

WindSE 6 mph

Air QualityPoor

Wind Gusts12 mph

Humidity80%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling18500 ft

9 PM

39°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 33%
Chevron down
Cloudy

WindSE 6 mph

Air QualityPoor

Wind Gusts12 mph

Humidity76%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling18500 ft

10 PM

39°
RealFeel® 33°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 70%
Chevron down
Rain

WindSE 6 mph

Air QualityPoor

Wind Gusts12 mph

Humidity74%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.03 in

Visibility6 mi

Cloud Ceiling4000 ft

11 PM

40°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 75%
Chevron down
Rain

WindSE 6 mph

Air QualityFair

Wind Gusts12 mph

Humidity74%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.06 in

Visibility5 mi

Cloud Ceiling4000 ft

Further Ahead

Tomorrow

Saturday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather News

Los Angeles wildfires one year later: rebuilding after $275B loss

20 hours ago

Weather Forecasts

Springlike warmth in East to be replaced by cold air, snowstorm risk

1 hour ago

Winter Weather

Alaska braces for new storms after extreme snowfall

16 hours ago

Winter Weather

Heavy snow, travel problems to expand from Cascades to interior West

1 hour ago

Severe Weather

Snow, flooding and severe weather to unfold in central, eastern US

12 hours ago

 More Stories

Featured Stories

Astronomy

Hubble telescope spots ‘failed’ starless galaxy known as Cloud 9

1 day ago

Climate

Climate risk reshaping homeownership decisions, study finds

15 hours ago
Live Blog

A Paris snowman at the Eiffel Tower

LATEST ENTRY

Snowman appears at Eiffel Tower after Paris Snowfall

1 day ago

Severe Weather

Top 5 tornado states in 2025

2 days ago

Astronomy

January quietly brings a big change to daylight across the US

15 hours 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
© 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

...

...

...