Delong Weather Forecast

    • 25
    • 27

    Increasing Clouds

    • 19
    • 42

    Partly Sunny

    • 24
    • 34

    Partly Sunny

    • 36
    • 43

    Mostly Cloudy

    • 35
    • 52

    Mostly Cloudy

    • 47
    • 54

    Mostly Cloudy

    • 39
    • 65

    Mostly Cloudy

Today 19 Dec Knox

Sunny and much cooler. Near steady temperature in the lower 20s. Southwest Winds 5 to 10 Mph.

Tonight 19 Dec Knox

Mostly cloudy. Not as cool with Lows in the mid 20s. Temperature rising into the lower 30s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

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Delong Temperature Statistics

December Temperature

Galesburg Municipal Airport (10.6 miles)

  • Lowest 14 December, 2025

    -12.5 °F

  • Average December

    21 °F

  • Highest 9 December, 2025

    41.2 °F

Climate (2020–Present)

Galesburg Municipal Airport (10.6 miles)

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  • Average Low 2020–2025

    41.3 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    61.7 °F
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