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

Alton, Ontario

8°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Alton

Ontario

8°
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
Alton, 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

Unlock extended 90-day forecasts

Activate Your Premium+ Subscription

Chevron right

January 20 - February 18

Tue 1/20

10° /8°
60%

WinterCast

Little to no accumulation

Tue, 1/20, 4:00 PM - Tue, 1/20, 7:00 PM

Snow
Some sun, then increasing clouds, brisk and bitterly cold; a couple of snow showers this afternoon; extreme cold can be dangerous for outdoor activities

RealFeel®-11°

RealFeel Shade™-11°

Max UV Index2.0 (Low)

WindWSW 16 mph

Wed 1/21

26° /18°
93%

WinterCast

1 - 3 in

Wed, 1/21, 7:00 AM - Wed, 1/21, 9:00 PM

Snow
Breezy and not as cold with snow and flurries, accumulating 1-3 inches; roads could be slippery

RealFeel®10°

RealFeel Shade™10°

Max UV Index1.0 (Low)

WindSSW 15 mph

Thu 1/22

21° /5°
42%

WinterCast

A coating to an inch

Thu, 1/22, 7:00 PM - Sat, 1/24, 4:00 AM

Snow
A morning flurry; otherwise, breezy and cold with some sun, then turning cloudy

RealFeel®2°

RealFeel Shade™2°

Max UV Index1.0 (Low)

WindWSW 18 mph

Fri 1/23

6° /-6°
65%

WinterCast

A coating to an inch

Thu, 1/22, 7:00 PM - Sat, 1/24, 4:00 AM

Snow
Intervals of clouds and sun with a couple of snow showers; brisk and bitterly cold

RealFeel®-13°

RealFeel Shade™-13°

Max UV Index2.0 (Low)

WindWNW 16 mph

Sat 1/24

4° /-6°
65%
Some sun, then turning cloudy with a couple of flurries; very cold; extreme cold can be dangerous for outdoor activities

RealFeel®-6°

RealFeel Shade™-8°

Max UV Index2.0 (Low)

WindW 9 mph

Sun 1/25

8° /-1°
2%
Very cold with sun through high clouds

RealFeel®9°

RealFeel Shade™9°

Max UV Index1.0 (Low)

WindWNW 5 mph

Mon 1/26

13° /-3°
35%
A thick cloud cover and very cold with a chance for snow showers

RealFeel®5°

RealFeel Shade™5°

Max UV Index1.0 (Low)

WindNE 7 mph

Tue 1/27

14° /3°
25%
Very cold with low clouds

RealFeel®-5°

RealFeel Shade™-5°

Max UV Index1.0 (Low)

WindW 15 mph

Wed 1/28

12° /1°
61%
Very cold with periods of snow

RealFeel®-7°

RealFeel Shade™-7°

Max UV Index1.0 (Low)

WindSW 16 mph

Thu 1/29

12° /4°
25%
Windy and very cold with low clouds

RealFeel®-13°

RealFeel Shade™-13°

Max UV Index1.0 (Low)

WindWNW 23 mph

Fri 1/30

16° /10°
10%
Cloudy and very cold

RealFeel®1°

RealFeel Shade™1°

Max UV Index1.0 (Low)

WindWSW 12 mph

Sat 1/31

21° /7°
43%
Low clouds and cold; an afternoon flurry

RealFeel®7°

RealFeel Shade™7°

Max UV Index1.0 (Low)

WindSW 14 mph

Sun 2/1

17° /3°
17%
Very cold with low clouds

RealFeel®7°

RealFeel Shade™7°

Max UV Index1.0 (Low)

WindW 9 mph

Mon 2/2

18° /9°
5%
Sunny and very cold

RealFeel®22°

RealFeel Shade™19°

Max UV Index2.0 (Low)

WindWNW 4 mph

Tue 2/3

19° /2°
57%
Cold with snow at times

RealFeel®5°

RealFeel Shade™5°

Max UV Index1.0 (Low)

WindW 13 mph

Wed 2/4

20° /1°
25%
Cold with periods of clouds and sunshine

RealFeel®25°

RealFeel Shade™25°

Max UV Index2.0 (Low)

WindWSW 5 mph

Thu 2/5

23° /13°
55%
Cloudy with a bit of snow

RealFeel®9°

RealFeel Shade™9°

Max UV Index1.0 (Low)

WindWSW 12 mph

Fri 2/6

31° /14°
25%
A thick cloud cover

RealFeel®24°

RealFeel Shade™24°

Max UV Index1.0 (Low)

WindSSE 7 mph

Sat 2/7

34° /6°
63%
Intermittent snow

RealFeel®19°

RealFeel Shade™19°

Max UV Index1.0 (Low)

WindNW 13 mph

Sun 2/8

30° /1°
25%
Mostly cloudy

RealFeel®23°

RealFeel Shade™23°

Max UV Index1.0 (Low)

WindWNW 10 mph

Mon 2/9

20° /1°
25%
Mostly cloudy and cold

RealFeel®24°

RealFeel Shade™24°

Max UV Index1.0 (Low)

WindSW 1 mph

Tue 2/10

21° /2°
25%
Mostly cloudy and cold

RealFeel®12°

RealFeel Shade™12°

Max UV Index1.0 (Low)

WindWNW 9 mph

Wed 2/11

20° /1°
20%
Partly sunny and cold

RealFeel®12°

RealFeel Shade™9°

Max UV Index3.0 (Moderate)

WindNW 9 mph

Thu 2/12

19° /1°
20%
Mostly sunny and cold

RealFeel®21°

RealFeel Shade™18°

Max UV Index3.0 (Moderate)

WindW 6 mph

Fri 2/13

21° /9°
57%
Cold with snow at times

RealFeel®8°

RealFeel Shade™8°

Max UV Index1.0 (Low)

WindESE 9 mph

Sat 2/14

36° /17°
25%
Cloudy and not as cold

RealFeel®28°

RealFeel Shade™28°

Max UV Index1.0 (Low)

WindNW 13 mph

Sun 2/15

29° /18°
59%
Occasional snow

RealFeel®17°

RealFeel Shade™17°

Max UV Index1.0 (Low)

WindENE 10 mph

Mon 2/16

31° /18°
73%
Sleet and freezing rain mixing with snow

RealFeel®28°

RealFeel Shade™28°

Max UV Index1.0 (Low)

WindESE 9 mph

Tue 2/17

37° /17°
55%
Considerable cloudiness with a bit of snow

RealFeel®24°

RealFeel Shade™24°

Max UV Index1.0 (Low)

WindWSW 17 mph

Wed 2/18

27° /11°
55%
Cloudy and colder with a bit of snow

RealFeel®13°

RealFeel Shade™13°

Max UV Index1.0 (Low)

WindWNW 15 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Major snow, ice storm to affect 150 million across South, East U.S.

9 minutes ago

Winter Weather

Massive 100-vehicle crash shuts down highway, multiple injured

6 hours ago

Winter Weather

More snow, lake-effect to accumulate in the Midwest, Northeast

36 minutes ago

Winter Weather

Dangerously cold air to surge through dozens of states later this week

20 minutes ago

Weather News

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

1 hour ago

 More Stories

Featured Stories

Astronomy

Rare purple, blue aurora appeared during Monday night's solar storm

1 hour ago

Climate

Western US faces worsening snow drought, with California the exception

3 days ago

Climate

Why this famous iceberg turned blue and what it says about melting ice

3 days ago

Weather News

High-speed train crash kills dozens in Spain, many more injured

1 day ago

Recreation

Death of 2 Florida students highlights risks of sand collapse

5 days ago
World North America Canada Ontario Alton

Weather Near Alton:

  • 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

...

...

...