Galesburg Weather Forecast

    • 65
    • 79

    Increasing Clouds

    • 58
    • 80

    Partly Sunny

    • 65
    • 81

    Chance Rain Showers

    • 62
    • 84

    Chance Rain Showers

    • 66
    • 83

    Chance Rain Showers

    • 66
    • 89

    Rain Showers Likely

    • 61
    • 80

    Chance Rain Showers

Today 9 Sep Knox

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Cooler. Near steady temperature in the mid 70s. West Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 9 Sep Knox

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 60s. West Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Galesburg Temperature Statistics

September Temperature

Galesburg Municipal Airport (3.1 miles)

  • Lowest 7 September, 2026

    60.1 °F

  • Average September

    79.1 °F

  • Highest 3 September, 2026

    93.6 °F

Climate (2021–2026)

Galesburg Municipal Airport (3.1 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    52.2 °F

  • Average High 2021–2026

    62.5 °F
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