Henderson Weather Forecast

    • 63
    • 83

    Mostly Sunny

    • 63
    • 85

    Sunny

    • 68
    • 86

    Chance Thunderstorms

    • 67
    • 86

    Rain Showers Likely

    • 64
    • 83

    Chance Thunderstorms

    • 64
    • 84

    Slight Chance Thunderstorms

Today 6 Jul Knox

Mostly sunny. Highs in the lower 80s. Northeast Winds 5 to 10 Mph.

Tonight 6 Jul Knox

Mostly clear. Lows in the mid 60s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Henderson Temperature Statistics

July Temperature

Galesburg Municipal Airport (7.5 miles)

  • Lowest 3 July, 2026

    68.9 °F

  • Average July

    80.4 °F

  • Highest 2 July, 2026

    90 °F

Climate (2021–2026)

Galesburg Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    62.4 °F
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