Arnold Weather Forecast

    • 20
    • 42

    Increasing Clouds

    • 11
    • 29

    Mostly Cloudy

    • 20
    • 25

    Snow Likely

    • 2
    • 32

    Chance Snow

    • -3
    • 11

    Mostly Cloudy

    • 2
    • 13

    Mostly Cloudy

Today 30 Jan Carlton/South St. Louis

Sunny. Much warmer with Highs in the lower 40s. Southwest Winds around 5 Mph, becoming west around 5 Mph this afternoon.

Tonight 30 Jan Carlton/South St. Louis

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 19. Northwest Winds 5 to 10 Mph.

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Arnold Temperature Statistics

January Temperature

Duluth International Airport (5 miles)

  • Lowest 21 January, 2025

    -26.2 °F
  • Average January

    8.5 °F
  • Highest 28 January, 2025

    39 °F

Climate (2020–Present)

Duluth International Airport (5 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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