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

Grimsby, Ontario

31°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Grimsby

Ontario

31°
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
Grimsby, 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

Tonight's Weather

Wed, Mar 4

Mostly cloudy Lo: 30°

Tomorrow: Low clouds, windy and colder with occasional rain in the afternoon Hi: 35°

Current Weather

11:14 PM

31°F
RealFeel® 33°
Cloudy More Details
Wind NNE 2 mph
Wind Gusts 2 mph
Air Quality Poor

Looking Ahead

Rain tomorrow afternoon will change to snow and accumulate 2-4 inches

WinterCast®

Thu Evening - Late Thu Night

Snow

Lasting 10 hours

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

12 AM 31°
rain drop 0%
1 AM 32°
rain drop 0%
2 AM 32°
rain drop 0%
3 AM 32°
rain drop 0%
4 AM 32°
rain drop 0%
5 AM 32°
rain drop 0%
6 AM 32°
rain drop 0%
7 AM 32°
rain drop 7%
8 AM 32°
rain drop 7%
9 AM 33°
rain drop 7%
10 AM 34°
rain drop 7%
11 AM 34°
rain drop 7%

10-Day Weather Forecast

Tonight

3/4

30° Lo

Mostly cloudy

2%

Thu

3/5

35° 31°

Windy and colder; p.m. rain

Night: Windy with snow, 2-4"
76%

Fri

3/6

38° 35°

Breezy in the morning; cloudy

Clearing; breezy late
6%

Sat

3/7

65° 33°

A shower and thunderstorm

Low clouds
88%

Sun

3/8

53° 41°

Breezy with sunny intervals

Mainly clear and windy
1%

Mon

3/9

56° 44°

Windy with plenty of sunshine

Mainly clear and windy
1%

Tue

3/10

55° 44°

A couple of morning showers

Rain and a thunderstorm late
55%

Wed

3/11

55° 30°

Windy with periods of rain

Early rain; windy and colder
61%

Thu

3/12

36° 27°

Partly sunny; windy, colder

Mostly cloudy
5%

Fri

3/13

43° 34°

Cloudy

Windy with periods of rain
13%

Sun & Moon

11 hrs 21 mins
Rise 6:50 AM
Set 6:11 PM
Waning Gibbous
Rise 7:48 PM
Set 7:32 AM

Air Quality

See More
Air Quality Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.

Allergy Outlook

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

Top Stories

Weather Forecasts

2026 Allergy Forecast: When will pollen be bad across the US?

16 hours ago

Severe Weather

Central US braces for days of severe weather, tornado threats

6 hours ago

Weather Forecasts

Temperatures to surge to May-like levels in eastern US

7 hours ago

Recreation

Death Valley’s best superbloom since 2016 is here

13 hours ago

Recreation

Body recovered from Hawaii Volcanoes National Park

13 hours ago

 More Stories

Featured Stories

Recreation

Yellowstone geyser erupts for 1st time since 2020

1 day ago

Recreation

Helicopter rescue saves missing hiker with frostbite in Adirondacks

1 day ago

Winter Weather

The fences that saved Wyoming big money and cut crashes by 70%

2 days ago

Travel

2 rescued after hot air balloon crashes, dangles from Texas cell tower

1 day ago

Travel

United Airlines flight makes emergency landing over possible engine fi...

1 day 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

...

...

...