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

Markham, Ontario

55°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Markham

Ontario

55°
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
Markham, 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

July 23 - August 6

Thu 7/23

76° /58°
1%
Nice with plenty of sunshine

RealFeel®81°

RealFeel Shade™73°

Max UV Index9.0 (Very High)

WindWSW 7 mph

Fri 7/24

78° /60°
1%
Nice with plenty of sun

RealFeel®83°

RealFeel Shade™75°

Max UV Index9.0 (Very High)

WindSSE 7 mph

Sat 7/25

80° /64°
84%
Intervals of clouds and sunshine with a couple of showers

RealFeel®85°

RealFeel Shade™77°

Max UV Index8.0 (Very High)

WindSSE 6 mph

Hours of Precipitation2

Hours of Rain2

Sun 7/26

80° /64°
88%
Sun breaking through clouds at times with a couple of showers and a thunderstorm; more humid; thunderstorms can be strong, perhaps severe

RealFeel®91°

RealFeel Shade™83°

Max UV Index8.0 (Very High)

WindSW 4 mph

Hours of Precipitation4

Hours of Rain4

Mon 7/27

80° /66°
55%
Mostly cloudy and humid; a shower in places in the afternoon

RealFeel®88°

RealFeel Shade™80°

Max UV Index6.0 (High)

WindSSW 4 mph

Hours of Precipitation0.5

Hours of Rain0.5

Tue 7/28

79° /61°
55%
Variable cloudiness with a thunderstorm; humid

RealFeel®83°

RealFeel Shade™79°

Max UV Index4.0 (Moderate)

WindNNW 9 mph

Hours of Precipitation2

Hours of Rain2

Wed 7/29

77° /62°
80%
Cloudy and humid with steady rain becoming intermittent

RealFeel®77°

RealFeel Shade™75°

Max UV Index2.0 (Low)

WindNW 13 mph

Hours of Precipitation4

Hours of Rain4

Thu 7/30

81° /63°
4%
Humid with sunshine and a few clouds

RealFeel®82°

RealFeel Shade™80°

Max UV Index9.0 (Very High)

WindNW 9 mph

Fri 7/31

78° /61°
3%
Partly sunny and humid

RealFeel®89°

RealFeel Shade™80°

Max UV Index9.0 (Very High)

WindW 4 mph

Sat 8/1

77° /62°
60%
Humid with periods of rain

RealFeel®84°

RealFeel Shade™79°

Max UV Index4.0 (Moderate)

WindSW 2 mph

Hours of Precipitation3

Hours of Rain3

Sun 8/2

77° /64°
4%
Decreasing clouds and humid

RealFeel®90°

RealFeel Shade™81°

Max UV Index9.0 (Very High)

WindNNE 6 mph

Mon 8/3

80° /65°
1%
Humid with more sunshine than clouds

RealFeel®89°

RealFeel Shade™84°

Max UV Index8.0 (Very High)

WindNE 5 mph

Tue 8/4

80° /64°
4%
Humid with more sunshine than clouds

RealFeel®92°

RealFeel Shade™88°

Max UV Index8.0 (Very High)

WindENE 5 mph

Wed 8/5

79° /60°
25%
Humid with sun and some clouds

RealFeel®87°

RealFeel Shade™84°

Max UV Index8.0 (Very High)

WindWNW 7 mph

Thu 8/6

76° /63°
5%
Sunny

RealFeel®81°

RealFeel Shade™73°

Max UV Index8.0 (Very High)

WindSW 6 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Live Blog

Live: Bertha flood threat moves toward Texas after Louisiana landfall

LATEST ENTRY

Bertha shifts west overnight, bringing flooding rain and storm surge toward Texas

6 hours ago

Hurricane

Tropical Storm Bertha crossing Louisiana with rain, storm surge

7 hours ago

Weather Forecasts

Smoke to be a periodic problem into August for Midwest, Northeast

14 minutes ago

Weather Forecasts

New heat dome to spread 100 F heat from Texas to Dakotas this weekend

10 hours ago

Severe Weather

Midweek severe storms in eastern US to pack damaging winds, flooding

11 hours ago

More Stories

Featured Stories

Weather News

Record flooding swamps West Virginia prompting state of emergency

15 hours ago

Weather News

Hot car death near Fort Myers is Florida’s fifth this year

9 hours ago

Travel

Wreckage of Pan Am plane found 74 years after it crashed off Puerto Ri...

16 hours ago

Weather News

5 dead after rescue attempts in fast-moving Ohio river

1 day ago

Weather News

Glimpse what life was like for survivors of the Pompeii disaster

1 day ago

World North America Canada Ontario Markham

Weather Near Markham:

  • 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

...

...

...