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

Acton, Ontario

50°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Acton

Ontario

50°
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
Acton, 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

Unlock extended 90-day forecasts

Activate Your Premium+ Subscription

Chevron right

August 29 - September 12

Sat 8/29

76° /60°
6%
Pleasant with times of clouds and sun

RealFeel®77°

RealFeel Shade™72°

Max UV Index6.0 (High)

WindSW 9 mph

Sun 8/30

71° /62°
55%
Cloudy with a thunderstorm in parts of the area

RealFeel®72°

RealFeel Shade™69°

Max UV Index3.0 (Moderate)

WindWSW 6 mph

Total Hours of Precipitation2

Total Hours of Rain2

Mon 8/31

73° /64°
82%
A couple of showers in the morning; otherwise, humid with times of clouds and sun

RealFeel®78°

RealFeel Shade™74°

Max UV Index5.0 (Moderate)

WindSSE 7 mph

Total Hours of Precipitation2

Total Hours of Rain2

Tue 9/1

80° /66°
55%
Mostly cloudy and warm with a thunderstorm

RealFeel®87°

RealFeel Shade™83°

Max UV Index3.0 (Moderate)

WindSE 7 mph

Total Hours of Precipitation1

Total Hours of Rain1

Wed 9/2

83° /60°
55%
Cloudy, very warm and humid with a thunderstorm; any thunderstorm can cause flash flooding and damaging winds

RealFeel®85°

RealFeel Shade™84°

Max UV Index2.0 (Low)

WindSSW 10 mph

Total Hours of Precipitation1

Total Hours of Rain1

Thu 9/3

77° /56°
13%
Partly sunny and pleasant

RealFeel®80°

RealFeel Shade™74°

Max UV Index6.0 (High)

WindWNW 8 mph

Fri 9/4

73° /55°
4%
Partial sunshine

RealFeel®77°

RealFeel Shade™70°

Max UV Index6.0 (High)

WindNW 7 mph

Sat 9/5

72° /56°
5%
Partly sunny

RealFeel®77°

RealFeel Shade™70°

Max UV Index6.0 (High)

WindNNW 5 mph

Sun 9/6

75° /56°
10%
Partial sunshine

RealFeel®79°

RealFeel Shade™72°

Max UV Index5.0 (Moderate)

WindSE 4 mph

Mon 9/7

74° /55°
55%
Rather cloudy with a little rain

RealFeel®77°

RealFeel Shade™71°

Max UV Index5.0 (Moderate)

WindW 6 mph

Total Hours of Precipitation2

Total Hours of Rain2

Tue 9/8

74° /57°
19%
Sun through high clouds

RealFeel®73°

RealFeel Shade™71°

Max UV Index3.0 (Moderate)

WindW 6 mph

Wed 9/9

72° /54°
60%
Periods of rain

RealFeel®76°

RealFeel Shade™68°

Max UV Index5.0 (Moderate)

WindW 5 mph

Total Hours of Precipitation3

Total Hours of Rain3

Thu 9/10

71° /54°
57%
A little morning rain; otherwise, clouds giving way to sun

RealFeel®74°

RealFeel Shade™68°

Max UV Index5.0 (Moderate)

WindWNW 5 mph

Total Hours of Precipitation1

Total Hours of Rain1

Fri 9/11

72° /39°
20%
Partly sunny

RealFeel®76°

RealFeel Shade™71°

Max UV Index4.0 (Moderate)

WindW 1 mph

Sat 9/12

73° /53°
10%
Mostly sunny

RealFeel®77°

RealFeel Shade™71°

Max UV Index5.0 (Moderate)

WindSW 2 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Dolly to drench northern Caribbean, raise flood risk

45 minutes ago

Severe Weather

Illinois sets US state record for most tornadoes in a year

17 hours ago

Hurricane

Dolly could regroup as US tropical threats unfold as Labor Day nears

41 minutes ago

Weather News

What caused the Nepal flood wave? Here’s what we know

1 day ago

Weather Forecasts

Heat dome to bounce back in Mississippi Valley, East as West cools

47 minutes ago

More Stories

Featured Stories

Astronomy

NASA’s Roman Space Telescope set to launch Sunday

19 hours ago

Weather News

Hummingbirds are migrating south. This map shows when they will leave

1 day ago

Weather News

Amazon rivers falling faster as El Niño intensifies

19 hours ago

Health

As a measles outbreak escalates in Pennsylvania’s Amish Country

19 hours ago

Climate

Global ocean heat breaks record months after its usual peak

2 days ago

World North America Canada Ontario Acton

Weather Near Acton:

  • 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

...

...

...