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

Grimsby, Ontario

59°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Grimsby

Ontario

59°
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, Aug 29

Pleasant with sun and clouds Hi: 79°

Tonight: Partly cloudy Lo: 64°

Current Weather

12:41 AM

59°F
RealFeel® 60°
Mostly clear More Details
Wind WSW 2 mph
Wind Gusts 2 mph
Air Quality Fair

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

1 AM 59°
rain drop 0%
2 AM 58°
rain drop 0%
3 AM 58°
rain drop 0%
4 AM 58°
rain drop 0%
5 AM 57°
rain drop 0%
6 AM 56°
rain drop 0%
7 AM 57°
rain drop 0%
8 AM 59°
rain drop 0%
9 AM 63°
rain drop 0%
10 AM 67°
rain drop 0%
11 AM 70°
rain drop 0%
12 PM 73°
rain drop 0%

10-Day Weather Forecast

Today

8/29

79° 64°

Pleasant with sun and clouds

Night: Partly cloudy

3%

Sun

8/30

75° 65°

Cloudy

Cloudy, showers around; humid

25%

Mon

8/31

74° 70°

Humid with a t-storm in spots

Partly cloudy, warm and humid

55%

Tue

9/1

82° 71°

Humid with a stray t-storm

Cloudy, warm; a shower late

55%

Wed

9/2

81° 65°

Humid with a thunderstorm

Clear and humid

55%

Thu

9/3

78° 63°

Partly sunny and humid

Mainly clear

3%

Fri

9/4

76° 62°

Partial sunshine

Mostly clear

3%

Sat

9/5

75° 61°

Times of clouds and sun

Clear to partly cloudy

5%

Sun

9/6

74° 62°

A stray afternoon t-storm

Humid; a little rain late

40%

Mon

9/7

74° 63°

Morning rain, then a shower

Partly cloudy and humid

85%

Sun & Moon

13 hrs 20 mins
Rise 6:39 AM
Set 7:59 PM
Waning Gibbous
Rise 8:30 PM
Set 9:19 AM

Air Quality

See More
Air Quality Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.

Allergy Outlook

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

Top Stories

Hurricane

Dolly to drench northern Caribbean, raise flood risk

10 hours ago

Severe Weather

Illinois sets US state record for most tornadoes in a year

11 hours ago

Hurricane

Dolly could regroup as US tropical threats unfold as Labor Day nears

10 hours ago

Weather News

What caused the Nepal flood wave? Here’s what we know

1 day ago

Weather Forecasts

Heat dome to bounce back in Mississippi Valley, East as West cools

9 hours ago

More Stories

Featured Stories

Astronomy

NASA’s Roman Space Telescope set to launch Sunday

14 hours ago

Weather News

Hummingbirds are migrating south. This map shows when they will leave

1 day ago

Weather News

Amazon rivers falling faster as El Niño intensifies

13 hours ago

Health

As a measles outbreak escalates in Pennsylvania’s Amish Country

14 hours ago

Climate

Global ocean heat breaks record months after its usual peak

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

...

...

...