Will School Be Closed in Duluth, Minnesota?

Real-time probability that schools in Duluth, Minnesota will be cancelled tomorrow, based on live forecast data and local closure thresholds.

❄️ Unlikely

Schools will likely remain open

95% confidence

Analysis Details

Analysis Summary

“No significant snowfall is forecast, sub-freezing temperatures (-3°C) will prevent melting.”

Risk Factor Breakdown

SnowfallForecast accumulation depth

Ice RiskFreezing rain & sleet risk

TemperatureRoad freeze potential

Storm TimingOvernight accumulation

Weather Data

Temperature

-3°C

27°F

Snowfall

0.0cm

next 24h

Precipitation

0.0mm

total

Wind

14 km/h

8 mph

Computed 07:00 AMSource: Open-MeteoEngine v1.0 · SSR

FAQ — Duluth, Minnesota

Will there be a snow day in Duluth, Minnesota tomorrow?

SnowSense™ currently shows a 0% snow day probability for Duluth, Minnesota. Status: Unlikely. No significant snowfall is forecast, sub-freezing temperatures (-3°C) will prevent melting.

How much snow is forecast for Duluth, Minnesota?

Our model shows 0.0mm of snowfall forecast for the next 24 hours in Duluth, Minnesota, with temperatures around -3°C.

How accurate is the SnowSense snow day calculator?

SnowSense™ uses live Open-Meteo forecast data — aggregating NOAA (HRRR/GFS) and ECMWF models — with regional tolerance modifiers and storm timing analysis. Our confidence score reflects how decisively the conditions point toward (or away from) a closure.

Typical closure threshold

10–18 inches, or wind chill below −30°F

Duluth has one of the highest snow-closure thresholds in the country. Districts here regularly hold classes through 6–8 inch events that would close schools in any mid-Atlantic city. The real closure trigger in Minnesota is wind chill: sustained values below −30°F trigger "cold day" cancellations under state safety guidance, because school buses and waiting children can't safely function in polar-vortex cold regardless of snow cover.

How Duluth handles winter weather differently

Schools in Minnesota are built — both culturally and infrastructurally — for severe winter. Bus fleets have engine-block heaters, diesel is blended for sub-zero temperatures, and most families have winter gear good to −20°F. This means snow accumulation alone rarely closes Duluth schools. A foot of powder in Duluth produces clean, drivable roads within hours because plow fleets are sized for this climate.

What actually stops Duluth schools is polar-vortex cold — when Arctic air masses drop south from Manitoba and wind chills reach −30°F or lower. Under those conditions, a child left at a bus stop can frostbite in minutes. The National Weather Service issues "dangerous wind chill" advisories that trigger district-level reviews, and when sustained wind chills are forecast below −35°F, closures are almost automatic.

Typical winter in Duluth

Duluth averages 86 inches of snow per year across a 5–6 month winter season. Despite that volume, schools typically close only 1–3 times per winter, with cold-day closures outnumbering snow-day closures.

Seasonal snowfall: 86 inches (among the highest in the lower 48)
Primary closure trigger: wind chill below −30°F (not snow accumulation)
Winter season: typically late October through early April
Transportation: diesel blended for −40°F, block heaters standard on school buses

SnowSense™ models wind-chill-driven closures separately from accumulation-driven closures because Minnesota is different. Live probability for Duluth refreshes every 30 minutes and accounts for both.

Minnesota · 287 words of Duluth-specific context