Allerton Weather Forecast

    • 63
    • 90

    Slight Chance Thunderstorms

    • 58
    • 87

    Mostly Sunny

    • 59
    • 86

    Sunny

    • 61
    • 88

    Chance Rain Showers

    • 50
    • 77

    Chance Rain Showers

    • 44
    • 72

    Mostly Sunny

    • 44
    • 73

    Mostly Sunny

Today 3 Oct Vermilion

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 3 Oct Vermilion

Partly cloudy with a slight chance of Showers this Evening, then mostly clear after midnight. Lows in the lower 60s. South Winds around 5 Mph. Chance of rain 20 percent.

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Allerton Temperature Statistics

October Temperature

University of Illinois - Willard (19.3 miles)

  • Lowest 1 October, 2025

    59 °F

  • Average October

    70.9 °F

  • Highest 1 October, 2025

    88 °F

Climate (2020–Present)

University of Illinois - Willard (19.3 miles)

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    64.8 °F
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