Duluth International Airport Weather Forecast

    • 11
    • 27

    Mostly Cloudy

    • 9
    • 23

    Mostly Cloudy

    • -2
    • 19

    Mostly Cloudy

    • 7
    • 18

    Mostly Cloudy

    • 10
    • 30

    Chance Snow

    • 3
    • 25

    Slight Chance Snow

Today 20 Feb Carlton/South St. Louis

Partly sunny this Morning, then becoming mostly cloudy. Highs in the upper 20s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 20 Feb Carlton/South St. Louis

Mostly cloudy. Lows around 10 above. Northwest Winds 5 to 10 Mph. Wind chill Values as low as zero.

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Duluth International Airport Temperature Statistics

February Temperature

Duluth International Airport (0 miles)

  • Lowest 3 February, 2026

    -6.4 °F

  • Average February

    22.8 °F

  • Highest 14 February, 2026

    46.9 °F

Climate (2021–Present)

Duluth International Airport (0 miles)

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  • Average Low 2021–2026

    33.6 °F

  • Average 2021–2026

    42.5 °F

  • Average High 2021–2026

    51.3 °F
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