Gardner Weather Forecast

    • 44
    • 68

    Partly Sunny

    • 44
    • 70

    Mostly Sunny

    • 52
    • 76

    Partly Sunny

    • 56
    • 81

    Partly Sunny

    • 58
    • 84

    Partly Sunny

    • 56
    • 82

    Partly Sunny

Today 6 Sep Grundy

Mostly sunny through mid Morning, then becoming partly cloudy. Highs in the upper 60s. West Winds 10 to 15 Mph.

Tonight 6 Sep Grundy

Mostly clear. Lows in the mid 40s. Northwest Winds around 5 Mph.

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Gardner Temperature Statistics

September Temperature

Joliet Regional Airport (23.6 miles)

  • Lowest 1 September, 2025

    52.7 °F

  • Average September

    66 °F

  • Highest 2 September, 2025

    80.6 °F

Climate (2020–Present)

Joliet Regional Airport (23.6 miles)

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  • Average Low 2020–2025

    43.4 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    63 °F
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