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

Grimsby, Ontario

44°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Grimsby

Ontario

44°
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
Grimsby, 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

Today's Weather

Sat, Oct 17

Breezy this morning with a passing shower; partly sunny and cooler Hi: 51°

Tonight: Clear Lo: 39°

Current Weather

3:45 AM

44°F
RealFeel® 36°
Clear More Details
Wind N 11 mph
Wind Gusts 17 mph
Air Quality Excellent

Looking Ahead

Pleasant tomorrow

Grimsby Weather Radar

Grimsby Weather Radar
Static Radar Temporarily Unavailable
Thank you for your patience as we work to get everything up and running again.
Refresh Page
Clouds
Temperature

Hourly Weather

4 AM 42°
rain drop 17%
5 AM 41°
rain drop 43%
6 AM 40°
rain drop 47%
7 AM 40°
rain drop 50%
8 AM 39°
rain drop 40%
9 AM 40°
rain drop 34%
10 AM 42°
rain drop 40%
11 AM 43°
rain drop 51%
12 PM 45°
rain drop 47%
1 PM 46°
rain drop 29%
2 PM 47°
rain drop 0%
3 PM 49°
rain drop 0%

10-Day Weather Forecast

Today

10/17

51° 39°

Cooler; a shower this morning

Night: Clear

55%

Sun

10/18

63° 45°

Pleasant; breezy in the p.m.

Clear

0%

Mon

10/19

65° 46°

Sunny and beautiful

Clear

0%

Tue

10/20

62° 46°

Sunny and beautiful

Clear

0%

Wed

10/21

60° 45°

Mostly sunny

Mainly clear

0%

Thu

10/22

62° 49°

Mostly sunny and beautiful

Mainly clear

0%

Fri

10/23

61° 46°

A quick shower in the morning

Clear

49%

Sat

10/24

60° 49°

Plenty of sun

Clear

0%

Sun

10/25

60° 47°

Plenty of sun

Becoming cloudy

0%

Mon

10/26

59° 48°

Considerable cloudiness

Overcast with occasional rain

3%

Sun & Moon

10 hrs 58 mins
Rise 7:34 AM
Set 6:32 PM
Waxing Crescent
Rise 2:28 PM
Set 11:09 PM

Air Quality

See More
Air Quality Excellent

The air quality is ideal for most individuals; enjoy your normal outdoor activities.

Allergy Outlook

See All
Dust & Dander Moderate Data is not supported in this location

Top Stories

Weather Forecasts

Quick cold snap with storms and snow coming for some in Northeast

13 hours ago

Winter Weather

Winter forecast 2026-2027: El Niño to reshape snow, cold across US

19 hours ago

Weather Forecasts

New nor'easter to howl along mid-Atlantic coast by next week

8 hours ago

Astronomy

A meteor shower linked to Halley’s Comet peaks Wednesday night

1 day ago

Hurricane

Trudy rapidly intensified as Simon struggles; both threatening Mexico

8 hours ago

More Stories

Featured Stories

Weather News

Dog rescued after 50 hours alone in Alaska wilderness

14 hours ago

Weather News

Shrinking Lake Mead exposed a barrel; murder victim is now identified

14 hours ago

Weather News

Cause of death revealed for Jackie, Big Bear's beloved bald eagle

1 day ago

Weather News

World’s largest wildlife crossing nears opening in California

2 days ago

Climate

AI-powered reefs may help beaches rebuild as erosion worsens

2 days ago

World North America Canada Ontario Grimsby

Weather Near Grimsby:

  • 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 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

...

...

...