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

St. Helens, Ontario

25°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Helens

Ontario

25°
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
St. Helens, 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
Thursday, March 12

Day

3/12
27°Hi
RealFeel® 13°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
RealFeel Shade™ 12°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
Colder with sun followed by increasing clouds

Max UV Index3.0 (Moderate)

WindSSW 15 mph

Wind Gusts33 mph

Probability of Precipitation25%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover61%

Night

3/12
20°Lo
RealFeel® 2°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
Windy with clearing

WindSSW 17 mph

Wind Gusts32 mph

Probability of Precipitation25%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover48%

Sun & Moon

11 hrs 45 mins
Rise 6:43 AM
Set 6:28 PM
Waning Crescent
Rise 3:21 AM
Set 11:28 AM

Temperature History

3/12
High
Low
Forecast
27°
20°
Average
39°
27°
Last Year
42°
25°

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Upcoming Valentine's Day storm to bring drenching rain to southern US

3 hours ago

Recreation

Death Valley could have rare superbloom in 2026

21 hours ago

Winter Weather

Storms line up to revive California's winter

2 hours ago

Winter Weather

Extreme cold in New York City linked to at least 17 deaths

16 hours ago

Weather Forecasts

Cold to pull back in eastern U.S. during week two, three of February

2 hours ago

 More Stories

Featured Stories

Winter Weather

Two boys die after falling through ice in Oklahoma

22 hours ago

Astronomy

A snow-rimmed Grand Canyon stands out in astronaut photo

1 day ago

Winter Weather

80-mile crack splits Lake Erie’s ice as the lake nears rare milestone

2 days ago

Weather News

Avalanches on Italian mountains claim 13 lives

2 days ago

Astronomy

6 planets, moon will align in February, but there's a catch

2 days ago
World North America Canada Ontario St. Helens

Weather Near St. Helens:

  • Brampton, Ontario
  • Hamilton, Ontario
  • Mississauga Valley, 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

...

...

...