Wilmington Weather Forecast

    • 68
    • 84

    Severe Tstms

    • 68
    • 85

    Rain Showers Likely

    • 66
    • 81

    Rain Showers Likely

    • 65
    • 79

    Chance Thunderstorms

    • 69
    • 83

    Chance Thunderstorms

    • 65
    • 82

    Chance Rain Showers

Today 11 Aug Southern Will

A chance of Showers and Thunderstorms early in the Morning, then Showers and Thunderstorms likely in the late morning and early afternoon. A chance of Showers and Thunderstorms late. Some Thunderstorms may be severe until late afternoon. Locally heavy rainfall possible until late afternoon. Humid with Highs in the mid 80s. Southwest Winds around 5 Mph. Chance of precipitation 70 percent.

Tonight 11 Aug Southern Will

Partly cloudy in the Evening, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms late in the evening. A chance of Showers and Thunderstorms after midnight. Humid with Lows in the upper 60s. Southeast Winds around 5 Mph. Chance of precipitation 30 percent.

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Wilmington Temperature Statistics

August Temperature

Joliet Regional Airport (14.3 miles)

  • Lowest 3 August, 2026

    60.6 °F
  • Average August

    74.4 °F
  • Highest 7 August, 2026

    86.9 °F

Climate (2021–2026)

Joliet Regional Airport (14.3 miles)

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  • Average Low 2021–2026

    43.6 °F
  • Average 2021–2026

    53.8 °F
  • Average High 2021–2026

    63.4 °F
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