Hadley Valley Forest Preserve Weather Forecast

    • 59
    • 86

    Mostly Sunny

    • 62
    • 88

    Mostly Sunny

    • 64
    • 87

    Slight Chance Thunderstorms

    • 63
    • 83

    Slight Chance Thunderstorms

    • 65
    • 82

    Chance Rain Showers

    • 62
    • 80

    Chance Rain Showers

Today 17 Sep Northern Will

Mostly sunny. Highs in the mid 80s. Northeast Winds around 5 Mph.

Tonight 17 Sep Northern Will

Mostly clear. Lows in the upper 50s. East Winds around 5 Mph in the Evening, becoming light and variable.

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Hadley Valley Forest Preserve Temperature Statistics

September Temperature

Lewis University Airport (5.6 miles)

  • Lowest 7 September, 2025

    44.6 °F

  • Average September

    62.5 °F

  • Highest 12 September, 2025

    84.2 °F

Climate (2020–Present)

Lewis University Airport (5.6 miles)

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  • Average Low 2020–2025

    43.4 °F

  • Average 2020–2025

    52.4 °F

  • Average High 2020–2025

    61.7 °F
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