Duluth Weather Forecast

    • 10
    • 22

    Mostly Cloudy

    • 13
    • 41

    Breezy

    • 30
    • 34

    Mostly Cloudy

    • -8
    • 36

    Chance Snow

    • 10
    • 19

    Chance Snow

    • -1
    • 25

    Partly Sunny

Today 15 Dec Carlton/South St. Louis

Partly sunny. Not as cool with Highs in the lower 20s. West Winds around 5 Mph.

Tonight 15 Dec Carlton/South St. Louis

Mostly cloudy. Lows around 7 above. Temperature rising to around 18 after midnight. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Duluth Temperature Statistics

December Temperature

Duluth - Sky Harbor Airport (5 miles)

  • Lowest 12 December, 2025

    -7.6 °F

  • Average December

    13 °F

  • Highest 10 December, 2025

    30.2 °F

Climate (2020–Present)

Duluth - Sky Harbor Airport (5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    36 °F

  • Average 2020–2025

    42.8 °F

  • Average High 2020–2025

    49.8 °F
Get WillyWeather+ to remove ads