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

Johnstown, Ontario

0°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Johnstown

Ontario

0°
No results found.
Try searching for a city, zip code or point of interest.
Create Account Unlock extended daily forecasts and additional saved locations — all with your free account.
Let's Go Chevron right
Have an account already? Login
settings
Johnstown, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly Daily 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 WinterCast Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Tuesday, January 20

Day

1/20
17°Hi
RealFeel® 13°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
RealFeel Shade™ 13°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
Sunny to partly cloudy, brisk and cold; extreme cold can be dangerous for outdoor activities

Max UV Index2.0 (Low)

AccuLumen Brightness Index™9 (Very Bright)

WindW 14 mph

Wind Gusts28 mph

Probability of Precipitation25%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover12%

Morning

Afternoon

Night

1/20
9°Lo
RealFeel® -11°
Frigid
RealFeel Guide
Frigid
-24° to -11°
Caution advised. Frostbite to exposed skin within 8 minutes. Hypothermia likely without protective clothing.
LEARN MORE
Breezy this evening; increasing cloudiness

WindWSW 12 mph

Wind Gusts28 mph

Probability of Precipitation25%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover55%

Evening

Overnight

Sun & Moon

9 hrs 25 mins
Rise 7:39 AM
Set 5:04 PM
Waxing Crescent
Rise 8:51 AM
Set 7:09 PM

Temperature History

1/20
High
Low
Forecast
17°
9°
Average
28°
10°
Last Year
15°
6°

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Stormy late-January setup raises risk for snow and ice impacts

3 hours ago

Winter Weather

Massive 100-vehicle crash shuts down highway, multiple injured

1 hour ago

Winter Weather

More snow, lake-effect to accumulate in the Midwest, Northeast

3 hours ago

Winter Weather

Dangerously cold air to surge through dozens of states later this week

3 hours ago

Weather News

Deadly wildfires burned across southern Chile amid extreme heat and wi...

1 hour ago

 More Stories

Featured Stories

Astronomy

How to photograph aurora lights on your phone

23 hours ago

Climate

Western US faces worsening snow drought, with California the exception

3 days ago

Climate

Why this famous iceberg turned blue and what it says about melting ice

3 days ago

Weather News

High-speed train crash kills dozens in Spain, many more injured

23 hours ago

Recreation

Death of 2 Florida students highlights risks of sand collapse

4 days ago
World North America Canada Ontario Johnstown

Weather Near Johnstown:

  • Buffalo, NY
  • Markham, 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 RealFeel® and RealFeel Shade™ 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 RealFeel® and RealFeel Shade™ 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

...

...

...