South Wilmington Weather Forecast

    • 26
    • 47

    Becoming Sunny

    • 39
    • 50

    Mostly Sunny

    • 48
    • 63

    Mostly Cloudy

    • 59
    • 77

    Chance Thunderstorms

    • 56
    • 81

    Rain Showers Likely

    • 43
    • 66

    Rain Showers Likely

Today 27 Mar Grundy

Mostly cloudy in the morning then clearing. Highs in the mid 40s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 27 Mar Grundy

Clear. Lows in the mid 20s. Northwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

South Wilmington Temperature Statistics

March Temperature

Greater Kankakee Airport (23 miles)

  • Lowest 16 March, 2026

    18.1 °F

  • Average March

    45.4 °F

  • Highest 21 March, 2026

    80.1 °F

Climate (2021–Present)

Greater Kankakee Airport (23 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    62.5 °F
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