Duluth International Airport Weather Forecast

    • 25
    • 42

    Chance Snow

    • 21
    • 32

    Chance Snow

    • 25
    • 35

    Slight Chance Snow

    • 21
    • 35

    Snow Likely

    • 12
    • 33

    Slight Chance Snow

    • 15
    • 32

    Chance Snow

Today 9 Mar Carlton/South St. Louis

Mostly sunny. Highs in the mid 40s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 9 Mar Carlton/South St. Louis

Mostly cloudy with a 50 percent chance of snow. Snow accumulation around an inch possible. Lows in the mid 20s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Duluth International Airport Temperature Statistics

March Temperature

Duluth International Airport (0 miles)

  • Lowest 1 March, 2026

    -10.4 °F

  • Average March

    26.7 °F

  • Highest 4 March, 2026

    48 °F

Climate (2021–Present)

Duluth International Airport (0 miles)

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  • Average Low 2021–2026

    33.6 °F

  • Average 2021–2026

    42.4 °F

  • Average High 2021–2026

    51.2 °F
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