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

Alliston, Ontario

42°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Alliston

Ontario

42°
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
Alliston, 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

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

7 AM

43°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 49%
Chevron down
Mostly cloudy

RealFeel Shade™44°

WindNW 4 mph

Air QualityExcellent

Max UV Index0.4 (Low)

Wind Gusts9 mph

Humidity91%

Indoor Humidity36% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover75%

Visibility10 mi

Cloud Ceiling10400 ft

8 AM

44°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 43%
Chevron down
Cloudy

RealFeel Shade™42°

WindNNW 7 mph

Air QualityExcellent

Max UV Index0.6 (Low)

Wind Gusts13 mph

Humidity82%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling13800 ft

9 AM

45°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™42°

WindNNW 8 mph

Air QualityExcellent

Max UV Index0.9 (Low)

Wind Gusts14 mph

Humidity80%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling13800 ft

10 AM

46°
RealFeel® 40°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 51%
Chevron down
Showers

RealFeel Shade™38°

WindNNW 9 mph

Air QualityExcellent

Max UV Index1.0 (Low)

Wind Gusts15 mph

Humidity74%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Rain0.02 in

Visibility6 mi

Cloud Ceiling7000 ft

11 AM

46°
RealFeel® 39°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 51%
Chevron down
Showers

RealFeel Shade™37°

WindNNW 10 mph

Air QualityExcellent

Max UV Index1.4 (Low)

Wind Gusts16 mph

Humidity74%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Rain0.02 in

Visibility6 mi

Cloud Ceiling7000 ft

12 PM

45°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™39°

WindNNW 10 mph

Air QualityExcellent

Max UV Index2.2 (Low)

Wind Gusts17 mph

Humidity75%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling9700 ft

1 PM

45°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 44%
Chevron down
Cloudy

RealFeel Shade™39°

WindNNW 9 mph

Air QualityExcellent

Max UV Index2.3 (Low)

Wind Gusts18 mph

Humidity75%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling9700 ft

2 PM

45°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 48%
Chevron down
Cloudy

RealFeel Shade™39°

WindNNW 8 mph

Air QualityExcellent

Max UV Index2.1 (Low)

Wind Gusts20 mph

Humidity78%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling9700 ft

3 PM

45°
RealFeel® 39°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 52%
Chevron down
Showers

RealFeel Shade™37°

WindNNW 9 mph

Air QualityExcellent

Max UV Index1.3 (Low)

Wind Gusts20 mph

Humidity77%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.02 in

Visibility6 mi

Cloud Ceiling7000 ft

4 PM

44°
RealFeel® 39°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 48%
Chevron down
Cloudy

RealFeel Shade™37°

WindNNW 10 mph

Air QualityExcellent

Max UV Index1.2 (Low)

Wind Gusts21 mph

Humidity77%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling9700 ft

5 PM

44°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 48%
Chevron down
Cloudy

RealFeel Shade™38°

WindNNW 10 mph

Air QualityExcellent

Max UV Index0.8 (Low)

Wind Gusts21 mph

Humidity76%

Indoor Humidity31% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling9700 ft

6 PM

43°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 52%
Chevron down
Showers

RealFeel Shade™34°

WindNNW 10 mph

Air QualityExcellent

Max UV Index0.5 (Low)

Wind Gusts21 mph

Humidity76%

Indoor Humidity30% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Rain0.02 in

Visibility6 mi

Cloud Ceiling7000 ft

7 PM

42°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 48%
Chevron down
Cloudy

RealFeel Shade™35°

WindNW 10 mph

Air QualityExcellent

Max UV Index0.3 (Low)

Wind Gusts20 mph

Humidity77%

Indoor Humidity30% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling9600 ft

8 PM

40°
RealFeel® 33°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 10%
Chevron down
Cloudy

RealFeel Shade™33°

WindNW 9 mph

Air QualityExcellent

Max UV Index0.0 (Low)

Wind Gusts18 mph

Humidity80%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling9600 ft

9 PM

39°
RealFeel® 33°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 10%
Chevron down
Intermittent clouds

WindNW 8 mph

Air QualityExcellent

Wind Gusts20 mph

Humidity82%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover72%

Visibility10 mi

Cloud Ceiling9600 ft

10 PM

39°
RealFeel® 33°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 10%
Chevron down
Intermittent clouds

WindNW 8 mph

Air QualityExcellent

Wind Gusts21 mph

Humidity82%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

39°
RealFeel® 33°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 10%
Chevron down
Intermittent clouds

WindNW 8 mph

Air QualityExcellent

Wind Gusts22 mph

Humidity81%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover58%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Alliston

AccuWeather's hourly forecast for Alliston provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 43° with a RealFeel® of 44°, mostly cloudy with a 49% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

Further Ahead

Tomorrow

Friday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

Severe weather on the move into southern, eastern U.S. through midweek

23 minutes ago

Weather Forecasts

Cold returns to Midwest, Northeast with frost risk; South to chill

37 minutes ago

Severe Weather

Weekend tornadoes leave 2 dead in Texas, destruction across Plains

20 hours ago

Weather Forecasts

Rain returns to southern US bringing drought and wildfire relief

53 minutes ago

Severe Weather

See it: Storm chasers encounter twin tornadoes in Oklahoma

1 day ago

 More Stories

Featured Stories

Weather News

World’s largest wildlife crossing to open this year

21 hours ago

Astronomy

2 full moons will light up May 2026, including a rare blue moon

21 hours ago

Storm spawns dual tornadoes in Oklahoma

2 days ago 0:32

Severe Weather

Super tornado outbreak of 2011 still impacts weather forecasting

16 hours ago

Weather News

A climber left his girlfriend to die on Austria’s tallest mountain

1 day ago
World North America Canada Ontario Alliston

Weather Near Alliston:

  • 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

...

...

...