Wilmington Weather Forecast

    • 52
    • 77

    Patchy Fog

    • 62
    • 80

    Partly Sunny

    • 68
    • 79

    Rain Showers Likely

    • 57
    • 76

    Rain Showers

    • 52
    • 67

    Chance Rain Showers

    • 52
    • 68

    Chance Rain Showers

    • 49
    • 68

    Partly Sunny

Today 28 Sep Southern Will

Mostly sunny. Highs in the lower 60s.

Tonight 28 Sep Southern Will

Clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the lower 50s. East Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Wilmington Temperature Statistics

September Temperature

Joliet Regional Airport (14.3 miles)

  • Lowest 26 September, 2026

    46.2 °F

  • Average September

    71.7 °F

  • Highest 2 September, 2026

    95.9 °F

Climate (2021–2026)

Joliet Regional Airport (14.3 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    63.3 °F
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