Duluth International Airport Weather Forecast

    • -1
    • 5

    Cold

    • 7
    • 20

    Mostly Cloudy

    • 9
    • 40

    Mostly Cloudy

    • 26
    • 30

    Snow

    • -10
    • 30

    Chance Snow

    • 6
    • 19

    Chance Snow

Today 14 Dec Carlton/South St. Louis

Mostly cloudy. Near steady temperature around 3 above. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Wind chill Values as low as 13 below.

Tonight 14 Dec Carlton/South St. Louis

Mostly cloudy. Not as cool with Lows around 2 below. Temperature rising to around 7 above after midnight. Southwest Winds 10 to 15 Mph with Gusts up to 35 Mph. Wind chill Values as low as 19 below.

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Duluth International Airport Temperature Statistics

December Temperature

Duluth International Airport (0 miles)

  • Lowest 12 December, 2025

    -13 °F

  • Average December

    8.6 °F

  • Highest 9 December, 2025

    24.1 °F

Climate (2020–Present)

Duluth International Airport (0 miles)

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  • Average Low 2020–2025

    33.6 °F

  • Average 2020–2025

    42.4 °F

  • Average High 2020–2025

    51.2 °F
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