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

Grimsby, Ontario

47°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Grimsby

Ontario

47°
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

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

WinterCast

Little to no accumulation

Thu, 3/12, 5:00 AM - Thu, 3/12, 10:00 AM

Snow

2 AM

46°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindSSW 18 mph

Air QualityExcellent

Wind Gusts33 mph

Humidity64%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

3 AM

45°
RealFeel® 33°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindSSW 18 mph

Air QualityExcellent

Wind Gusts35 mph

Humidity66%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

4 AM

44°
RealFeel® 31°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindSSW 18 mph

Air QualityExcellent

Wind Gusts36 mph

Humidity69%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

5 AM

43°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindSSW 20 mph

Air QualityExcellent

Wind Gusts36 mph

Humidity72%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

42°
RealFeel® 29°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindSSW 20 mph

Air QualityExcellent

Wind Gusts37 mph

Humidity74%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

41°
RealFeel® 27°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindSSW 21 mph

Air QualityExcellent

Wind Gusts37 mph

Humidity76%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

43°
RealFeel® 31°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™31°

WindSSW 17 mph

Air QualityExcellent

Max UV Index0.6 (Low)

Wind Gusts31 mph

Humidity73%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover6%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

45°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™33°

WindSSW 18 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts31 mph

Humidity67%

Indoor Humidity43% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover4%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

47°
RealFeel® 39°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™36°

WindSSW 18 mph

Air QualityFair

Max UV Index2.3 (Low)

Wind Gusts31 mph

Humidity63%

Indoor Humidity30% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

50°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™40°

WindSW 20 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts32 mph

Humidity59%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

53°
RealFeel® 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™44°

WindSW 20 mph

Air QualityFair

Max UV Index3.8 (Moderate)

Wind Gusts33 mph

Humidity53%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

56°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™47°

WindSW 21 mph

Air QualityFair

Max UV Index4.0 (Moderate)

Wind Gusts35 mph

Humidity49%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

58°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™50°

WindSW 21 mph

Air QualityFair

Max UV Index3.8 (Moderate)

Wind Gusts36 mph

Humidity45%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover3%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

60°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™53°

WindSW 21 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts37 mph

Humidity43%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

62°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™56°

WindSW 20 mph

Air QualityFair

Max UV Index2.3 (Low)

Wind Gusts35 mph

Humidity41%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

61°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™54°

WindSW 20 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts33 mph

Humidity44%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

60°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™54°

WindSW 17 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts31 mph

Humidity46%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

57°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™50°

WindSW 15 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts29 mph

Humidity52%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

55°
RealFeel® 48°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSW 15 mph

Air QualityFair

Wind Gusts29 mph

Humidity56%

Indoor Humidity35% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

52°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSW 15 mph

Air QualityFair

Wind Gusts27 mph

Humidity62%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

49°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSSW 14 mph

Air QualityFair

Wind Gusts27 mph

Humidity68%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

47°
RealFeel® 39°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSSW 14 mph

Air QualityFair

Wind Gusts24 mph

Humidity72%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

Further Ahead

Tomorrow

Wednesday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

Central US to face renewed threat for severe storms, tornadoes

6 hours ago

Severe Weather

Deadly tornadoes kill 8 as violent storms sweep Midwest, central US

1 day ago

Incredible amounts of debris swirl through the air as tornado strikes ...

2 days ago 0:57

Weather News

Daylight saving time returns Sunday, 1 area is done changing clocks

3 days ago

Weather Forecasts

Fresh surge of storms to renew flood threat in Central US this week

10 hours ago

 More Stories

Featured Stories

Recreation

25-year-old becomes 1st American woman to row solo across Atlantic

2 days ago

Recreation

When will DC cherry blossoms reach peak bloom? 2026 forecast released

3 days ago

Recreation

Death Valley’s best superbloom since 2016 is here

4 days ago

Weather News

Louisiana rocked by strongest earthquake in decades

3 days ago

Recreation

Yellowstone geyser erupts for 1st time since 2020

5 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

...

...

...