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

Cornwall, Ontario

17°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Cornwall

Ontario

17°
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
Cornwall, 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

A coating to an inch

Sat, 1/17, 8:00 AM - Sun, 1/18, 6:00 AM

Snow

9 AM

20°
RealFeel® 3°
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
rain drop 61%
Chevron down
Flurries

RealFeel Shade™3°

WindSE 14 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts17 mph

Humidity87%

Indoor Humidity28% (Very Dry)

Dew Point16° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Snowtrace

Visibility10 mi

Cloud Ceiling2100 ft

10 AM

23°
RealFeel® 7°
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
rain drop 43%
Chevron down
Flurries

RealFeel Shade™7°

WindSSE 15 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts17 mph

Humidity84%

Indoor Humidity30% (Dry)

Dew Point19° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Snow0.06 in

Visibility6 mi

Cloud Ceiling1700 ft

11 AM

27°
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
rain drop 40%
Chevron down
Cloudy

RealFeel Shade™13°

WindSSE 14 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts17 mph

Humidity80%

Indoor Humidity32% (Dry)

Dew Point21° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling1700 ft

12 PM

31°
RealFeel® 19°
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
rain drop 40%
Chevron down
Cloudy

RealFeel Shade™19°

WindS 14 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts16 mph

Humidity75%

Indoor Humidity33% (Dry)

Dew Point23° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling1700 ft

1 PM

32°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 41%
Chevron down
Flurries

RealFeel Shade™30°

WindSSW 5 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts6 mph

Humidity76%

Indoor Humidity35% (Dry)

Dew Point25° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Snowtrace

Visibility10 mi

Cloud Ceiling1700 ft

2 PM

33°
RealFeel® 29°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 44%
Chevron down
Flurries

RealFeel Shade™29°

WindSW 6 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts7 mph

Humidity75%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Snow0.06 in

Visibility6 mi

Cloud Ceiling1700 ft

3 PM

33°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 40%
Chevron down
Cloudy

RealFeel Shade™30°

WindSW 6 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts7 mph

Humidity80%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling1700 ft

4 PM

32°
RealFeel® 28°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

RealFeel Shade™28°

WindSW 6 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts7 mph

Humidity82%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling1700 ft

5 PM

32°
RealFeel® 27°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindSW 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity82%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling1800 ft

6 PM

31°
RealFeel® 25°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindSSW 7 mph

Air QualityFair

Wind Gusts10 mph

Humidity83%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover92%

Visibility10 mi

Cloud Ceiling2000 ft

7 PM

31°
RealFeel® 23°
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
rain drop 34%
Chevron down
Cloudy

WindSSW 9 mph

Air QualityFair

Wind Gusts12 mph

Humidity82%

Indoor Humidity36% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling2100 ft

8 PM

32°
RealFeel® 23°
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
rain drop 34%
Chevron down
Cloudy

WindSSW 10 mph

Air QualityFair

Wind Gusts13 mph

Humidity81%

Indoor Humidity36% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling2800 ft

9 PM

32°
RealFeel® 21°
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
rain drop 34%
Chevron down
Cloudy

WindSSW 12 mph

Air QualityFair

Wind Gusts14 mph

Humidity81%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling3400 ft

10 PM

33°
RealFeel® 20°
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
rain drop 39%
Chevron down
Cloudy

WindSW 14 mph

Air QualityFair

Wind Gusts16 mph

Humidity78%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling4000 ft

11 PM

33°
RealFeel® 17°
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
rain drop 43%
Chevron down
Flurries

WindSW 15 mph

Air QualityFair

Wind Gusts18 mph

Humidity76%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Snow0.08 in

Visibility6 mi

Cloud Ceiling5000 ft

Further Ahead

Tomorrow

Monday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Storm to bring snow from Georgia to North Carolina, graze Northeast

11 minutes ago

Winter Weather

Large storms with snow and ice may be on the horizon for next week

17 hours ago

Climate

Western US faces worsening snow drought, with California the exception

11 hours ago

Winter Weather

Rounds of snow to create hazardous travel from Midwest to Northeast

1 hour ago

Winter Weather

1 dead after 5 pileups on snowy roads in New York, Pennsylvania

19 hours ago

More Stories

Featured Stories

Climate

Why this famous iceberg turned blue and what it says about melting ice

17 hours ago

Astronomy

NASA to roll out Artemis II rocket ahead of astronaut moon launch

13 hours ago

Recreation

Death of 2 Florida students highlights risks of sand collapse

1 day ago

Astronomy

March’s total lunar eclipse will turn the moon red, here’s when to see...

2 days ago

Recreation

Rare and majestic sand sculptures only exist for minutes

19 hours ago

World North America Canada Ontario Cornwall

Weather Near Cornwall:

  • Laval, Quebec
  • Montreal, Quebec
  • Ottawa, 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

...

...

...