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

Thornhill, Ontario

69°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Thornhill

Ontario

69°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
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
Thornhill, 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

71°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 54%
Chevron down
Showers

RealFeel Shade™70°

WindSE 6 mph

Air QualityPoor

Max UV Index0.3 (Low)

Wind Gusts7 mph

Humidity82%

Indoor Humidity82% (Humid)

Dew Point65° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Visibility6 mi

Cloud Ceiling10000 ft

8 AM

69°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 25%
Chevron down
Cloudy

RealFeel Shade™70°

WindN 5 mph

Air QualityPoor

Max UV Index0.8 (Low)

Wind Gusts6 mph

Humidity82%

Indoor Humidity82% (Humid)

Dew Point63° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling19000 ft

9 AM

73°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Mostly cloudy

RealFeel Shade™73°

WindNE 5 mph

Air QualityPoor

Max UV Index1.6 (Low)

Wind Gusts7 mph

Humidity78%

Indoor Humidity78% (Humid)

Dew Point66° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover85%

Visibility10 mi

Cloud Ceiling19000 ft

10 AM

76°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Mostly cloudy

RealFeel Shade™76°

WindSE 5 mph

Air QualityPoor

Max UV Index2.7 (Moderate)

Wind Gusts9 mph

Humidity71%

Indoor Humidity71% (Humid)

Dew Point66° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling19000 ft

11 AM

78°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 20%
Chevron down
Mostly cloudy

RealFeel Shade™78°

WindSSE 6 mph

Air QualityPoor

Max UV Index4.7 (Moderate)

Wind Gusts12 mph

Humidity64%

Indoor Humidity64% (Humid)

Dew Point65° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

80°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 20%
Chevron down
Mostly cloudy

RealFeel Shade™79°

Heat Index82°

WindSSE 6 mph

Air QualityPoor

Max UV Index4.9 (Moderate)

Wind Gusts14 mph

Humidity60%

Indoor Humidity60% (Humid)

Dew Point65° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling19000 ft

1 PM

81°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 19%
Chevron down
Mostly cloudy

RealFeel Shade™80°

Heat Index83°

WindSSE 7 mph

Air QualityPoor

Max UV Index5.4 (Moderate)

Wind Gusts15 mph

Humidity57%

Indoor Humidity57% (Humid)

Dew Point65° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling19000 ft

2 PM

82°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 17%
Chevron down
Mostly cloudy

RealFeel Shade™80°

Heat Index83°

WindSSE 8 mph

Air QualityPoor

Max UV Index4.3 (Moderate)

Wind Gusts17 mph

Humidity55%

Indoor Humidity55% (Humid)

Dew Point64° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover84%

Visibility10 mi

Cloud Ceiling19000 ft

3 PM

83°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 17%
Chevron down
Mostly cloudy

RealFeel Shade™81°

Heat Index84°

WindSSE 8 mph

Air QualityPoor

Max UV Index3.8 (Moderate)

Wind Gusts17 mph

Humidity53%

Indoor Humidity53% (Humid)

Dew Point64° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling19000 ft

4 PM

83°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 22%
Chevron down
Mostly cloudy

RealFeel Shade™82°

Heat Index85°

WindSSE 8 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts17 mph

Humidity52%

Indoor Humidity52% (Humid)

Dew Point64° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

84°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 43%
Chevron down
Mostly cloudy

RealFeel Shade™83°

Heat Index86°

WindSSE 8 mph

Air QualityPoor

Max UV Index2.3 (Low)

Wind Gusts16 mph

Humidity50%

Indoor Humidity50% (Humid)

Dew Point64° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

83°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 47%
Chevron down
Mostly cloudy

RealFeel Shade™81°

Heat Index84°

WindSSE 7 mph

Air QualityPoor

Max UV Index1.5 (Low)

Wind Gusts15 mph

Humidity54%

Indoor Humidity54% (Humid)

Dew Point64° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

80°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms

RealFeel Shade™77°

Heat Index82°

WindESE 6 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts14 mph

Humidity60%

Indoor Humidity60% (Humid)

Dew Point65° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover77%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

8 PM

78°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 68%
Chevron down
Rain

RealFeel Shade™76°

WindENE 5 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts12 mph

Humidity67%

Indoor Humidity67% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover88%

Rain0.05 in

Visibility6 mi

Cloud Ceiling4000 ft

9 PM

76°
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 68%
Chevron down
Rain

WindNE 5 mph

Air QualityFair

Wind Gusts10 mph

Humidity73%

Indoor Humidity73% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover92%

Rain0.05 in

Visibility7 mi

Cloud Ceiling4000 ft

10 PM

75°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

WindNE 5 mph

Air QualityFair

Wind Gusts10 mph

Humidity73%

Indoor Humidity73% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling19000 ft

11 PM

74°
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

WindNE 5 mph

Air QualityFair

Wind Gusts10 mph

Humidity72%

Indoor Humidity72% (Humid)

Dew Point65° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling19000 ft

Hourly Weather Forecast for Thornhill

AccuWeather's hourly forecast for Thornhill provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 71° with a RealFeel® of 70°, showers with a 54% 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

Monday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

Severe storms to march from Plains to Appalachians into Sunday

14 minutes ago

Weather Forecasts

Western heat dome fuels growing wildfire, flood threats

3 hours ago

Severe Weather

2026 tornado count: Illinois way up, Texas way down

14 hours ago

Astronomy

August night sky has a rare double feature with eclipse, meteor shower

21 hours ago

Severe Weather

Wisconsin EF3 tornado leaves damage as severe storms cut power

3 days ago

 More Stories

Featured Stories

Recreation

Zion warns visitors of deadly flash flood danger during monsoon season

18 hours ago

Weather News

Sleeping giant: How sperm whales stay afloat while resting

18 hours ago

Weather News

Triple-digit heat fuels wildfires in France and Spain

2 days ago

Astronomy

Buck Moon 2026: July's full moon rises around the world

2 days ago

Climate

Mexico to unveil sargassum plan as crisis worsens in Caribbean

1 day ago
World North America Canada Ontario Thornhill

Weather Near Thornhill:

  • 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

...

...

...