Duluth International Airport Weather Forecast

    • 16
    • 41

    Mostly Sunny

    • 26
    • 40

    Snow

    • 27
    • 35

    Snow

    • 22
    • 41

    Partly Sunny

    • 24
    • 44

    Partly Sunny

    • 21
    • 44

    Partly Sunny

Today 31 Mar Carlton/South St. Louis

Sunny. Near steady temperature around 40. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 31 Mar Carlton/South St. Louis

Clear in the Evening, then becoming partly cloudy. Lows around 16. North Winds 5 to 10 Mph, becoming east after midnight.

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Duluth International Airport Temperature Statistics

March Temperature

Duluth International Airport (0 miles)

  • Lowest 1 March, 2025

    2.8 °F

  • Average March

    31.3 °F

  • Highest 10 March, 2025

    62.7 °F

Climate (2020–Present)

Duluth International Airport (0 miles)

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  • Average Low 2020–2025

    33.6 °F

  • Average 2020–2025

    42.3 °F

  • Average High 2020–2025

    51 °F
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