Henderson Weather Forecast

    • 41
    • 66

    Sunny

    • 44
    • 69

    Mostly Sunny

    • 46
    • 70

    Mostly Sunny

    • 49
    • 73

    Mostly Sunny

    • 50
    • 74

    Mostly Sunny

    • 51
    • 73

    Partly Sunny

    • 53
    • 72

    Mostly Cloudy

Today 18 Oct Knox

Mostly cloudy. Lows in the lower 50s. Highs in the mid 70s.

Tonight 18 Oct Knox

Clear. Lows around 40. South Winds around 5 Mph.

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  • Temperature Real-Time

Henderson Temperature Statistics

October Temperature

Galesburg Municipal Airport (7.5 miles)

  • Lowest 16 October, 2026

    40.3 °F

  • Average October

    62.4 °F

  • Highest 12 October, 2026

    87.3 °F

Climate (2021–2026)

Galesburg Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    52.2 °F

  • Average High 2021–2026

    62.5 °F
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