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

40°
RealFeel® 39°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 47%
Chevron down
Showers

RealFeel Shade™39°

WindNE 5 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts9 mph

Humidity91%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Rain0.01 in

Visibility10 mi

Cloud Ceiling3400 ft

8 AM

41°
RealFeel® 37°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 40%
Chevron down
Showers

RealFeel Shade™37°

WindN 7 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts14 mph

Humidity99%

Indoor Humidity36% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling3100 ft

9 AM

41°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 37%
Chevron down
Cloudy

RealFeel Shade™38°

WindN 7 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts16 mph

Humidity90%

Indoor Humidity34% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling1600 ft

10 AM

41°
RealFeel® 40°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 33%
Chevron down
Cloudy

RealFeel Shade™37°

WindN 7 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts17 mph

Humidity81%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling1700 ft

11 AM

42°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 32%
Chevron down
Cloudy

RealFeel Shade™37°

WindNNW 7 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts17 mph

Humidity77%

Indoor Humidity43% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling3100 ft

12 PM

42°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 32%
Chevron down
Cloudy

RealFeel Shade™37°

WindNNW 8 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts20 mph

Humidity69%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling3100 ft

1 PM

43°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 22%
Chevron down
Cloudy

RealFeel Shade™38°

WindNNW 8 mph

Air QualityFair

Max UV Index2.4 (Low)

Wind Gusts20 mph

Humidity61%

Indoor Humidity39% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling4600 ft

2 PM

45°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 1%
Chevron down
Cloudy

RealFeel Shade™38°

WindNNW 9 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts21 mph

Humidity55%

Indoor Humidity38% (Dry)

Dew Point29° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling4600 ft

3 PM

45°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 1%
Chevron down
Cloudy

RealFeel Shade™39°

WindNNW 10 mph

Air QualityFair

Max UV Index1.7 (Low)

Wind Gusts22 mph

Humidity51%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling4600 ft

4 PM

47°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 1%
Chevron down
Cloudy

RealFeel Shade™40°

WindNNW 10 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts23 mph

Humidity47%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling4600 ft

5 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 1%
Chevron down
Cloudy

RealFeel Shade™39°

WindNNW 12 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts25 mph

Humidity48%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling4600 ft

6 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 1%
Chevron down
Mostly cloudy

RealFeel Shade™39°

WindNNW 10 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts22 mph

Humidity48%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover80%

Visibility10 mi

Cloud Ceiling4600 ft

7 PM

44°
RealFeel® 40°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 1%
Chevron down
Mostly cloudy

RealFeel Shade™40°

WindNNW 8 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts18 mph

Humidity49%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling23300 ft

8 PM

42°
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
Partly sunny

RealFeel Shade™39°

WindNNW 6 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts15 mph

Humidity52%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover40%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

40°
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
Partly cloudy

WindNW 5 mph

Air QualityFair

Wind Gusts13 mph

Humidity56%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

39°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy

WindWNW 5 mph

Air QualityFair

Wind Gusts12 mph

Humidity59%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

38°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy

WindWSW 5 mph

Air QualityFair

Wind Gusts10 mph

Humidity61%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

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 40° with a RealFeel® of 39°, showers with a 47% 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

Winter Weather

Late-season snowstorm to snarl travel in Denver, Rockies

1 hour ago

Astronomy

Halley's comet fuels Eta Aquarids lighting up the sky this week

13 hours ago

Severe Weather

Severe storms to rattle central, eastern US in first full week of May

1 hour ago

Weather Forecasts

From 80s to frost: Temperature rollercoaster in Northeast, Midwest

1 hour ago

Weather Forecasts

Heat to surge across western U.S.; 100 F for some cities

1 hour ago

 More Stories

Featured Stories

Recreation

Bear attack injures 2 hikers in Yellowstone National Park

19 hours ago

Weather News

Lightning may have sparked fire that destroyed Florida marine lab

1 day ago

Recreation

2nd rescued sloth dies from closed Orlando attraction

18 hours ago

Health

Melanoma survivor’s story underscores importance of early checks

1 day ago

Weather News

Residents flee ash after Mayon Volcano erupts in the Philippines

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

...

...

...