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

Ancaster, Ontario

18°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Ancaster

Ontario

18°
No results found.
Try searching for a city, zip code or point of interest.
Create Account Unlock extended daily forecasts and additional saved locations — all with your free account.
Let's Go Chevron right
Have an account already? Login
settings
Ancaster, 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

Thu, Jan 22

Mostly cloudy, breezy and colder with flurries Lo: 7°

Tomorrow: Mostly cloudy, brisk and bitterly cold with a couple of snow showers Hi: 11°

Current Weather

7:28 PM

18°F
RealFeel® 12°
Snow More Details
Wind WSW 6 mph
Wind Gusts 14 mph
Air Quality Fair

MINUTECAST®

Snow ending in 1 min

Now
8:28 PM

Looking Ahead

Snowfall from late Saturday night into Monday afternoon will total 3-6 inches

WinterCast®

Fri Morning - Late Fri Night

Snow

Lasting 18 hours

Ancaster Weather Radar

Ancaster 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

8 PM 20°
rain drop 58%
9 PM 19°
rain drop 48%
10 PM 18°
rain drop 49%
11 PM 17°
rain drop 59%
12 AM 17°
rain drop 49%
1 AM 17°
rain drop 34%
2 AM 15°
rain drop 34%
3 AM 15°
rain drop 40%
4 AM 14°
rain drop 58%
5 AM 12°
rain drop 58%
6 AM 11°
rain drop 58%
7 AM 11°
rain drop 47%

10-Day Weather Forecast

Tonight

1/22

7° Lo

Flurries; breezy, colder

65%

Fri

1/23

11° -4°

A couple of snow showers

Night: Very cold with snow showers
65%

Sat

1/24

9° 5°

Very cold with flurries

A little snow late, up to 1"
65%

Sun

1/25

14° 6°

Very cold with snow, 1-3"

Snow, 1-2"
69%

Mon

1/26

14° 3°

Very cold with snow showers

Cold; breezy late
65%

Tue

1/27

15° 5°

Very cold with a little snow

Clearing and cold
65%

Wed

1/28

14° 5°

Sun, then clouds; very cold

Mostly cloudy and cold
25%

Thu

1/29

11° 4°

Mostly sunny and very cold

Clear and cold
25%

Fri

1/30

14° 6°

Very cold with clouds and sun

Partly cloudy
8%

Sat

1/31

17° 7°

Cold with clouds and sun

Partly cloudy
12%

Sun & Moon

9 hrs 34 mins
Rise 7:45 AM
Set 5:19 PM
Waxing Crescent
Rise 9:42 AM
Set 9:41 PM

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 Very High Data is not supported in this location

Top Stories

Winter Weather

Ice storm threatens Texas to Virginia with massive power outages

3 hours ago

Weather News

Salt Lake City rocked by magnitude 4.7 earthquake

8 hours ago

Winter Weather

Massive snowstorm to bury areas from Oklahoma City to NYC, Boston

3 hours ago

Winter Weather

Texas braces for major winter storm with cold not seen since 2021

4 hours ago

Winter Weather

Severe cold may lead to days of dangerous conditions

3 hours ago

 More Stories

Featured Stories

Astronomy

Webb reveals stunning new lava-like details inside Helix Nebula

6 hours ago

Weather News

Deadly wildfires burned across southern Chile amid extreme heat and wi...

2 days ago

Astronomy

NASA astronaut Suni Williams retires months after return from troubled...

1 day ago

Weather News

Four shark attacks in two days. Why Australia’s beaches are dangerous

2 days ago

Travel

Second rail tragedy rocks Spain, as passenger train derails

1 day ago
World North America Canada Ontario Ancaster

Weather Near Ancaster:

  • Hamilton, 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

...

...

...