Wilmington Weather Forecast

    • 5
    • 18

    Sunny

    • 15
    • 25

    Mostly Sunny

    • 15
    • 29

    Mostly Cloudy

    • 14
    • 25

    Chance Snow

    • 16
    • 33

    Chance Snow

    • 3
    • 22

    Mostly Cloudy

    • 7
    • 18

    Partly Sunny

Today 20 Jan Grundy

Sunny. Highs 15 to 19. North Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Wilmington Temperature Statistics

January Temperature

Joliet Regional Airport (14.3 miles)

  • Lowest 7 January, 2022

    -1.8 °F
  • Average January

    23.5 °F
  • Highest 18 January, 2022

    46.4 °F

Climate (2010–Present)

Joliet Regional Airport (14.3 miles)

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  • Average Low 2010–Present

    43.5 °F
  • Average 2010–Present

    53.2 °F
  • Average High 2010–Present

    62.3 °F
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