Lafayette Weather Forecast

    • 65
    • 82

    Chance Rain Showers

    • 67
    • 79

    Chance Rain Showers

    • 66
    • 86

    Rain Showers Likely

    • 59
    • 73

    Rain Showers Likely

    • 56
    • 67

    Chance Rain Showers

    • 54
    • 68

    Partly Sunny

Today 17 Sep Stark

Mostly cloudy. A chance of Showers and Thunderstorms this morning. Patchy fog this morning. Some Thunderstorms may produce heavy rainfall this morning. Highs in the lower 80s. East Winds around 5 Mph, becoming northwest around 5 Mph this afternoon. Chance of rain 40 percent.

Tonight 17 Sep Stark

Mostly cloudy. A chance of Showers after midnight. Lows in the mid 60s. Northeast Winds around 5 Mph. Chance of rain 30 percent.

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Lafayette Temperature Statistics

September Temperature

Galesburg Municipal Airport (26.7 miles)

  • Lowest 14 September, 2026

    52.3 °F

  • Average September

    73.9 °F

  • Highest 3 September, 2026

    93.6 °F

Climate (2021–2026)

Galesburg Municipal Airport (26.7 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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