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

Chelmsford, Ontario

21°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Chelmsford

Ontario

21°
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
Chelmsford, 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

2 - 4 in

Tue, 3/10, 8:00 PM - Thu, 3/12, 2:00 AM

Snow

0.15 - 0.25 in

Mon, 3/16, 2:00 AM - Mon, 3/16, 8:00 AM

Ice

8 PM

21°
RealFeel® 4°
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 49%
Chevron down
Snow
alerts

Yellow Warning - Winter Storm

3:45 PM Wednesday - 6:00 AM Thursday

WindN 15 mph

Air QualityFair

Wind Gusts25 mph

Humidity81%

Indoor Humidity28% (Very Dry)

Dew Point16° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snow0.11 in

Visibility5 mi

Cloud Ceiling2000 ft

9 PM

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 49%
Chevron down
Flurries
alerts

Yellow Warning - Winter Storm

3:45 PM Wednesday - 6:00 AM Thursday

WindNNW 14 mph

Air QualityFair

Wind Gusts27 mph

Humidity79%

Indoor Humidity27% (Very Dry)

Dew Point14° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Snow0.10 in

Visibility4 mi

Cloud Ceiling2000 ft

10 PM

19°
RealFeel® 4°
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 45%
Chevron down
Cloudy
alerts

Yellow Warning - Winter Storm

3:45 PM Wednesday - 6:00 AM Thursday

WindNNW 13 mph

Air QualityFair

Wind Gusts24 mph

Humidity85%

Indoor Humidity27% (Very Dry)

Dew Point15° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling2000 ft

11 PM

18°
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 39%
Chevron down
Cloudy
alerts

Yellow Warning - Winter Storm

3:45 PM Wednesday - 6:00 AM Thursday

WindNNW 13 mph

Air QualityFair

Wind Gusts23 mph

Humidity85%

Indoor Humidity27% (Very Dry)

Dew Point14° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling2000 ft

Further Ahead

Tomorrow

Friday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

Severe outbreak in 20+ states brings nighttime tornado danger

3 hours ago
Live Blog

Live updates: Severe storms put Texas to Pennsylvania on alert

LATEST ENTRY

Tornado warnings push into Pennsylvania and Mid-Atlantic Wednesday night

27 minutes ago

Severe Weather

Grapefruit-sized hailstone may set state record

4 hours ago

Winter Weather

High winds to roar from Rockies to Northeast with northern tier snow

3 hours ago

Weather Forecasts

Storms to dump heavy rain, snow on Washington as California bakes

4 hours ago

 More Stories

Featured Stories

Winter Weather

Nine states had their warmest winter ever recorded

7 hours ago

Recreation

'Quicksand alert' issued at National Park Service site

5 hours ago

Severe Weather

Why nighttime tornadoes are 2.5 times more deadly

1 day ago

Weather News

Mount Rushmore fireworks to return for America's 250th anniversary

1 day ago

Weather News

Indiana just changed the law for rescuing pets trapped in hot cars

1 day ago
World North America Canada Ontario Chelmsford

Weather Near Chelmsford:

  • Barrie, Ontario
  • Greater Sudbury, Ontario
  • Rouyn-Noranda, Quebec
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

...

...

...