St Lawrence - McAllister Weather Forecast

    • 68
    • 86

    Chance Thunderstorms

    • 64
    • 79

    Chance Rain Showers

    • 69
    • 85

    Rain Showers Likely

    • 61
    • 82

    Chance Thunderstorms

    • 57
    • 75

    Chance Thunderstorms

    • 57
    • 74

    Mostly Cloudy

Today 17 Sep Tippecanoe

Mostly cloudy Early, then becoming partly cloudy. A slight chance of Showers and Thunderstorms Early, then a chance of Showers and Thunderstorms late. Highs in the upper 80s. West Winds around 5 Mph. Chance of rain 20 percent.

Tonight 17 Sep Tippecanoe

Partly cloudy Early, then a chance of Showers and Thunderstorms late this afternoon. Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms toward daybreak. Humid with Lows in the upper 60s. West Winds around 5 Mph, becoming northeast. Chance of rain 50 percent.

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St Lawrence - McAllister Temperature Statistics

September Temperature

Lafayette, Purdue University Airport (3.7 miles)

  • Lowest 14 September, 2026

    53.1 °F

  • Average September

    76.7 °F

  • Highest 4 September, 2026

    96.7 °F

Climate (2021–2026)

Lafayette, Purdue University Airport (3.7 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    54.1 °F

  • Average High 2021–2026

    64.3 °F
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