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

Chelmsford, Ontario

61°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Chelmsford

Ontario

61°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
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 10-Day 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 Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
Friday, September 25

Day

9/25
69°Hi
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel Shade™ 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Pleasant with plenty of sunshine

Max UV Index4.0 (Moderate)

AccuLumen Brightness Index™9 (Very Bright)

WindNW 4 mph

Wind Gusts7 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover10%

Morning

Afternoon

Night

9/25
42°Lo
RealFeel® 40°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
Mainly clear

WindNNW 5 mph

Wind Gusts7 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover11%

Evening

Overnight

Sun & Moon

12 hrs 02 mins
Rise 7:14 AM
Set 7:16 PM
Waxing Gibbous
Rise 6:41 PM
Set 7:10 AM

Temperature History

9/25
High
Low
Forecast
69°
42°
Average
59°
42°
Last Year
75°
57°

Further Ahead

Hourly

10-Day

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Nor’easter to bring major coastal flooding; high winds in New England

3 hours ago

Hurricane

Tropical Storm Nolo to become hurricane, slam Hawaii with multi-day de...

4 hours ago

Weather News

Coastal flooding, powerful surf spread as nor’easter brews

8 hours ago

Hurricane

Hurricane Polo to send tropical downpours into New Mexico, Texas

6 hours ago

Weather Forecasts

Crisp autumn weekend coming to eastern US away from nor’easter

3 hours ago

 More Stories

Featured Stories

Climate

Water Demand: The double-edged sword of data centers

1 day ago

Hurricane

Category 5 Hurricane Polo strengthens to 2nd strongest on record

1 day ago

Astronomy

Harvest Moon 2026: When to see September’s full moon

3 days ago

Recreation

Hiker dies in fall on Washington trail a day after hiker found dead

5 hours ago

Weather News

Lake Tahoe’s poisoned-pine mystery: $147,000 reward offered

3 days 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

...

...

...