Gilman Weather Forecast

    • 44
    • 67

    Slight Chance Rain

    • 43
    • 69

    Mostly Sunny

    • 43
    • 69

    Mostly Sunny

    • 46
    • 72

    Mostly Sunny

    • 53
    • 78

    Partly Sunny

    • 58
    • 82

    Partly Sunny

Today 5 Sep Iroquois

Partly cloudy through mid Morning, then becoming mostly cloudy. A slight chance of Sprinkles in the afternoon. Breezy. Highs in the mid 60s. West Winds 15 to 20 Mph, Diminishing to 10 to 15 Mph in the afternoon. Gusts up to 30 Mph.

Tonight 5 Sep Iroquois

Mostly cloudy in the Evening, then clearing. Lows in the mid 40s. West Winds 5 to 10 Mph.

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Gilman Temperature Statistics

September Temperature

Greater Kankakee Airport (21.7 miles)

  • Lowest 1 September, 2025

    51.8 °F

  • Average September

    65.4 °F

  • Highest 2 September, 2025

    80.6 °F

Climate (2020–Present)

Greater Kankakee Airport (21.7 miles)

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    52.1 °F

  • Average High 2020–2025

    61.7 °F
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