Onarga Weather Forecast

    • 57
    • 83

    Mostly Cloudy

    • 54
    • 80

    Partly Sunny

    • 52
    • 81

    Sunny

    • 56
    • 83

    Mostly Sunny

    • 63
    • 86

    Partly Sunny

    • 65
    • 88

    Chance Thunderstorms

Today 31 May Iroquois

Mostly cloudy. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 31 May Iroquois

Mostly cloudy. Lows in the mid 50s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Real-Time

Onarga Temperature Statistics

May Temperature

Greater Kankakee Airport (25.5 miles)

  • Lowest 2 May, 2026

    33.1 °F

  • Average May

    60.8 °F

  • Highest 27 May, 2026

    87.6 °F

Climate (2021–Present)

Greater Kankakee Airport (25.5 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    62.6 °F
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