Toronto Braces for First Snowfall: Up to 20 cm Expected This Weekend Across Southern Ontario

What This Means for You

For Toronto and GTA Residents: Immediate Preparation

Weekend Timeline (November 8–9):

Saturday, November 8 (Today):

Storm system begins approaching from the west
Temperatures drop throughout the day
Rain begins transitioning to mixed precipitation by evening
Prepare vehicles, stock supplies, complete outdoor tasks

Sunday, November 9:

Mixed precipitation (rain, ice pellets, wet snow) throughout the day
Heavy snow possible, especially north of the city
Accumulation: 5–15 cm possible in GTA (up to 20 cm in some areas)
Temperatures: High around 0°C, low –5°C overnight
Difficult winter driving conditions expected

Monday, November 10 (Day After Storm):

Lake-effect snow squalls possible
30% chance of flurries or showers
Temperatures: Low –4°C
Continued cold, windy conditions

Tuesday, November 11 (Remembrance Day):

Lake-effect snow squalls possible
30% chance of flurries or showers
Temperatures: Low –4°C
Continued cold, windy conditions
Some ceremonial events may be affected

Immediate Actions (Next 24–48 Hours):

Home Preparation:

Check furnace is working properly
Test carbon monoxide detectors
Bring outdoor furniture/plants inside
Clear eavestroughs of autumn leaves
Stock up on groceries (avoid Sunday shopping)
Have flashlights and batteries ready (power outages possible)
Charge all devices fully

Vehicle Preparation:

Fill gas tank (don't let it drop below half-tank in winter)
Check antifreeze levels
Ensure windshield washer fluid is winter-rated (–40°C)
Test windshield wipers (replace if streaking)
Check tire pressure (drops in cold weather)
Consider installing winter tires if not already done
Stock emergency kit: blanket, food, water, shovel, ice scraper

Cost of Basic Winter Vehicle Supplies:

Winter windshield washer fluid: $5–10 per jug
Windshield wiper blades: $15–40 per pair
Ice scraper/snow brush: $10–25
Emergency blanket: $5–15
Portable shovel: $15–30
Total: $50–120 for basic winter readiness

For Drivers: First Snow Safety

Why the First Snow Is Most Dangerous:

According to traffic safety research, the first snowfall of the season sees disproportionately high accident rates because:

Drivers haven't adjusted to winter conditions yet
Muscle memory for winter driving hasn't kicked in
Roads may not be pre-treated by municipalities
Vehicles may not have winter tires yet
Black ice often forms during freeze-thaw cycles

Sunday Driving Advice:

If You Must Drive:

Allow 50–100% extra travel time
Drive 50% slower than normal speed
Increase following distance to 8–10 seconds
Gentle braking (start slowing down early)
No sudden movements (steering, acceleration, braking)
Turn on headlights even during day
Watch for black ice on bridges, overpasses, shaded areas
If car slides, steer into the direction of the skid

Best Advice: Don't Drive Sunday If Possible

Postpone non-essential travel
Work from home if your employer allows
Reschedule appointments
Use delivery services for groceries
Let road crews do their work

Monday (Remembrance Day) Considerations:

Many Canadians attend outdoor ceremonies at 11:00 AM
Roads may still be snow-covered or icy
Give yourself extra time to reach ceremonies
Dress warmly for outdoor observances
Some ceremonies may be moved indoors due to weather

For Different Southern Ontario Regions

Greater Toronto Area (Toronto, Mississauga, Brampton, Markham):

Mixed precipitation likely (rain/snow/ice pellets)
5–15 cm accumulation possible
Wet, heavy snow (harder to shovel, sticks to power lines)
Higher chance of freezing rain
Action: Prepare for messy, slushy conditions

Areas North of GTA (Barrie, Orillia, Lake Simcoe):

Higher likelihood of heavy snow
15–20 cm possible
Colder temperatures = drier, fluffier snow
Lake-effect enhancement possible Monday
Action: Full winter storm preparation

Southwestern Ontario (London, Kitchener-Waterloo, Guelph):

Depends heavily on storm track
Could see significant snow or mainly rain
10–20 cm possible in some scenarios
Action: Monitor forecasts closely Saturday

Ottawa Valley:

Northern track scenario brings heavy snow
10–20 cm possible
Colder temperatures favor all-snow event
Action: Prepare for winter conditions

Niagara Region and Hamilton:

Warmer due to Lake Ontario influence
More likely rain or mixed precipitation
5–10 cm possible
Action: Prepare for icy, slushy conditions

Winter Tire Considerations

Is It Time for Winter Tires?

According to Transport Canada and CAA recommendations:

Install winter tires when temperatures consistently below 7°C
Winter tires improve braking by 25–40% on snow and ice
All-season tires harden in cold, losing grip

This Weekend's Implications:

If you haven't installed winter tires, now is the time
Many shops booked up, but try calling Saturday morning
Quebec law requires winter tires by December 1
BC highways require winter tires or chains October 1 – March 31

Emergency Options if Can't Get Appointment:

Reduce speed dramatically
Avoid hills and highways if possible
Consider chains for emergency use (check local regulations)
Prioritize getting winter tires next week

Costs:

New winter tires: $400–1,200 for set of four
Used winter tires: $200–600 for set
Installation: $60–120
Storage (if applicable): $50–100/season

For Parents and Schools

School Considerations:

Sunday storm may affect Monday
Tuesday (Remembrance Day) – most schools closed anyway
Wednesday, November 12 may see delays or closures
Check school board websites Sunday evening
Bus cancellations more likely in rural areas

Child Safety:

First snow is exciting for kids – supervise outdoor play
Teach about road safety in winter conditions
Visibility reduced – bright clothing essential
Slippery sidewalks and driveways – fall hazards

Outdoor Activities:

Snow may be too wet for snowballs/snowmen Sunday
Monday's colder weather better for snow play
Check local tobogganing hills – may not be open yet
Dress kids in layers: base layer, insulation, waterproof outer

Property Owners: Snow Removal Responsibilities

Legal Requirements (Ontario):

According to municipal bylaws:

Property owners must clear sidewalks adjacent to property
Time limits: 12–24 hours after snowfall ends (varies by municipality)
Toronto: Must clear within 12 hours after snow stops
Failure to clear can result in fines: $125–300
Municipality may clear and charge you the cost

Snow Removal Strategy:

During the Storm (Sunday):

Don't bother – it's still falling
Clear path to storm drain if clogged

After Storm Ends (Sunday evening/Monday morning):

Wait until snow stops completely
Clear walkways first (safety priority)
Then driveway
Shovel in layers if very heavy (prevent back injury)
Apply salt or sand (salt works down to –9°C)

Equipment Needed:

Snow shovel: $20–60
Ice melt/salt: $10–20 per bag
Sand (better for environment): $5–10 per bag
Ergonomic snow shovel recommended (reduces back strain)

Snow Removal Services:

Residential driveway clearing: $30–60 per visit
Seasonal contract: $300–600 (varies widely by property size)
Last-minute availability may be limited – many book in advance

Health and Safety Concerns

Shoveling Safety:

According to cardiovascular health experts:

Snow shoveling is intense cardiovascular exercise
Heart attack risk increases, especially for sedentary adults
Wet, heavy snow is particularly dangerous
Cold air constricts blood vessels, increasing strain

High-Risk Groups:

Adults over 55 with sedentary lifestyle
Anyone with heart disease history
High blood pressure
High cholesterol
Smokers

Safer Shoveling Technique:

Warm up first (5–10 minutes light activity)
Push snow rather than lift when possible
Lift with legs, not back
Take frequent breaks
Don't eat heavy meal before shoveling
Stop immediately if chest pain, shortness of breath, or dizziness

Alternative: Hire neighborhood youth or snow removal service

Slip and Fall Prevention:

Wear boots with good traction
Take small steps on icy surfaces
Use handrails
Keep one hand free for balance (not in pockets)
Walk like a penguin (seriously – short, shuffling steps)
Clear ice from steps and walkways immediately

Cold Exposure:

Frostbite possible when wind chill below –27°C
Monday's cold air + wind = windchill risk
Cover exposed skin
Limit outdoor exposure time
Watch for signs: numbness, white/grayish skin, hard or waxy skin

Power Outage Preparedness

Why First Snowfalls Cause Outages:

Wet, heavy snow accumulates on power lines
Lines not yet pre-treated or reinforced
Trees still have some leaves, catch more snow
Weight brings down branches onto lines

Outage Preparedness:

Charge all devices now
Have flashlights ready (not candles – fire hazard)
Know where your circuit breaker is
Keep fridge/freezer closed if power fails
Food safe 4 hours in fridge, 48 hours in full freezer
Have battery-powered radio
Report outages to utility company

Heating Without Power:

Never use BBQ, camp stove, or generator indoors (carbon monoxide)
Fireplace if available (ensure chimney clear)
Close off unused rooms
Dress in layers
Emergency blankets in car kit

Long-Range Implications

Is This Winter Starting Early?

According to seasonal forecasts:

Old Farmer's Almanac predicts colder, snowier winter for Ontario
Environment Canada seasonal outlook suggests near-normal temperatures, above-normal precipitation
La Niña pattern (if develops) typically brings colder winters to Canada
Early first snow doesn't necessarily predict harsher winter, but suggests active pattern

This Weekend as a Wake-Up Call:

Many Canadians unprepared for winter (it's only November 8!)
Winter tire installations booked up
Snow removal equipment may be sold out
Use this event to get fully winter-ready

The News: What Happened

According to Environment Canada and meteorological services, Southern Ontario is bracing for its first significant snowfall of the 2025–2026 winter season this weekend, with a low-pressure system expected to bring rain, ice pellets, and wet snow to the Greater Toronto Area on Sunday, November 9, 2025.

The Weather Network reports that early indications suggest parts of Southern Ontario could see significant snowfall from this system, with totals possibly reaching up to 20 cm by Sunday night in the hardest-hit areas. However, forecasters emphasize considerable uncertainty about exactly which regions will receive the heaviest accumulation.

According to Environment Canada's forecast, Toronto will experience rain or snow on Sunday with temperatures dropping to –5°C at night, while Monday brings a 30% chance of flurries or showers with a low of –4°C. Behind the initial storm system, a strong surge of cold air over the still-warm Great Lakes will ignite lake-effect snow squalls on Monday, according to meteorological models.

The Weather Network notes that forecast models are in disagreement about the storm's track, which will ultimately determine who gets the heaviest snow. In one scenario, areas north of the GTA—including parts of Southwestern Ontario, Lake Simcoe, and the Ottawa Valley—would see heavy snow, while the GTA experiences a mix of rain, ice pellets, and wet snow. If the storm tracks farther south, it could shift the heaviest snowfall directly into the GTA and surrounding regions, with totals exceeding 15 cm.

This represents an earlier first snowfall than last year, as Toronto experienced its first accumulation in the first week of December 2024.

Analysis: Why This Matters

The Increasing Unpredictability of Canadian Weather

According to climate scientists and meteorological research, while individual weather events can't be directly attributed to climate change, several trends are emerging:

Temperature Volatility:

More extreme swings between warm and cold
October 2025 saw above-average temperatures in Southern Ontario
Sudden drops create dangerous icy conditions

Precipitation Intensity:

When it snows, it often snows harder (more moisture in warmer atmosphere)
Wet, heavy snow more common
Infrastructure stress from weight

Seasonal Timing:

First/last frost dates shifting
But high variability year-to-year
Difficult for individuals and municipalities to predict and prepare

Practical Implications:

Can't rely on past patterns
Must stay alert to forecasts
Prepare for all scenarios

The First Snow Psychology

According to transportation safety research and psychology studies:

Why We Forget How to Drive in Snow:

8–9 months since last snow creates skill decay
Brain needs retraining for winter conditions
Overconfidence from months of clear driving
Muscle memory hasn't kicked in yet

Collective Amnesia:

Every first snow brings traffic chaos
Emergency rooms see spike in falls
We genuinely forget winter preparedness steps
This article serves as annual reminder

Solution:

Treat first snow as high-alert event
Drive like you're relearning
Extreme caution for first few snowfalls
Skills return after a few events

Municipal Preparedness

According to municipal winter operations:

Road Treatment:

Toronto has 1,500+ snowplows/salt trucks
Priority system: Expressways first, then main streets, then residential
Pre-treatment possible Saturday if forecast certain
First snow often sees delays (crews ramping up)

Budget Considerations:

Toronto's winter operations budget: ~$100 million annually
Early snow could mean higher costs (more total events)
Salt supplies stockpiled summer/fall
Equipment checked and ready

Resident Expectations:

Residential streets cleared last
May take 12–24 hours after snow ends
Understand priorities: Emergency routes critical
File complaints if service standards not met (72 hours after snow)

Economic Impacts

According to economic analysis:

Immediate Costs:

Lost productivity (people staying home, slow commutes)
Retail disruption (Sunday shopping affected)
Accidents and insurance claims spike
Emergency services overtime
Municipal snow clearing costs

Retail Sector:

Last-minute winter equipment sales surge
Grocery stores see rush Saturday
Snowblower, shovel, salt sales spike
Online delivery services overwhelmed

Long-Term:

Early winter start could mean higher heating costs
Energy consumption spikes during cold snaps
Food prices affected by transportation delays

Other Perspectives

Meteorologists' Perspective

According to weather forecasters:

Track uncertainty normal for 72+ hours out
Models converging on significant event, but details unclear
Small changes in track = big changes in who gets snow
Lake-effect Monday adds complexity
Residents should monitor forecasts Saturday for updates

Emergency Services Perspective

According to police, fire, and paramedics:

Expect significant call volume increase Sunday
Accidents, medical emergencies (shoveling), falls
Response times slower in bad weather
Please only call 911 for true emergencies
Non-urgent issues can wait

Transportation Services Perspective

According to transit authorities:

TTC prepared for winter operations
Buses may run slower, expect delays
Streetcars vulnerable to icing
GO Transit monitoring for potential delays
Check service alerts before traveling

Retail Perspective

According to hardware/grocery stores:

Expect Saturday rush for winter supplies
Shovels, salt, ice melt selling fast
Grocery delivery slots filling up
Shop early Saturday for best selection

Tourism and Hospitality Perspective

According to tourism industry:

First snow traditionally boosts ski hill preparations
Blue Mountain, Collingwood area excited
Too early for most hills to open (need sustained cold)
Hotels may see cancellations for Sunday travel

Your Action Plan

Friday Evening, November 8 (Tonight):

Check Environment Canada forecast for your area
Make list of winter supplies you need
Plan Saturday morning supply run
Move any outdoor items that could blow around
Charge all devices before bed
Check that you have snow shovel/ice scraper accessible

Saturday, November 8 (Today – Preparation Day):

Morning: Buy winter supplies early (shovels, salt, windshield washer fluid)
Morning: Grocery shop (avoid Sunday rush)
Midday: Fill car with gas
Afternoon: Check vehicle antifreeze, wiper fluid, tire pressure
Afternoon: Clear yard of anything that could be buried (kids' toys, garden tools)
Evening: Bring in any remaining outdoor items
Evening: Check forecast updates (track may change)
Evening: Plan to stay home Sunday if possible

Sunday, November 9 (Storm Day):

Morning: Check updated forecast and road conditions
Morning: Cancel non-essential travel
All day: Stay home if possible
If must drive: Allow double travel time, drive slow
Afternoon: Monitor storm progress
Evening: Wait for snow to end before shoveling
Evening: Check Monday forecast

Monday, November 10 (Day After Storm):

Morning (6:00–8:00 AM): Shovel walkways and driveway
Morning: Apply salt or sand to slippery areas
All day: Drive carefully – roads may still be slippery
Evening: Check Tuesday forecast (Remembrance Day)

Tuesday, November 11 (Remembrance Day):

Before 10:00 AM: If attending Remembrance Day ceremony, leave extra time
10:45 AM: Observe moment of silence at 11:00 AM (wherever you are)
All day: Some ceremonial events may be affected by lingering snow
Evening: Check Wednesday forecast (potential school/work impacts)

Next Week (November 12 Onward):

Install winter tires if not yet done
Stock up on ice melt/salt for season
Complete winterization checklist:
- Furnace serviced
- Windows checked for drafts
- Emergency kit stocked
- Winter clothing accessible
- Car winter-ready

Corrections Policy

We strive for accuracy in this weather analysis. Forecasts are based on Environment Canada and meteorological services as of November 8, 2025, afternoon. Weather conditions can change rapidly. Always check official sources for the most current information.

This article is current as of November 8, 2025, 2:00 PM EST. For latest forecasts, visit weather.gc.ca

Updates:

No corrections to date

Need winter driving tips? Read: Winter Driving in Canada: Complete Safety Guide

Winter tire deadline approaching? Check: Canada Winter Tire Deadline 2025

Preparing for winter costs? Explore: Winter Heating Costs Surge 2025

Sources & Further Reading

Weather Forecasts:

News Coverage:

Safety Resources:

Municipal Resources:

City of Toronto - Snow Clearing Operations
Region of Peel - Winter Operations
York Region - Winter Maintenance

Stay safe and warm, Southern Ontario. Winter is here! ❄️🍁