Old Monroe Weather Forecast

    • 12
    • 23

    Partly Sunny

    • 11
    • 34

    Partly Sunny

    • 11
    • 22

    Mostly Sunny

    • 30
    • 40

    Partly Sunny

    • 20
    • 45

    Partly Sunny

    • 18
    • 33

    Mostly Cloudy

Today 17 Jan Lincoln

Mostly cloudy with a chance of Flurries. Much cooler with Highs in the lower 20s. West Winds 15 to 20 Mph. Wind chill Values as low as 3 above.

Tonight 17 Jan Lincoln

Mostly cloudy with a chance of Flurries in the Evening, then partly cloudy after midnight. Lows around 10 above. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 4 below.

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Old Monroe Temperature Statistics

January Temperature

St. Charles, St. Charles County Smartt Airport (16.8 miles)

  • Lowest 12 January, 2026

    23 °F

  • Average January

    44.9 °F

  • Highest 6 January, 2026

    66 °F

Climate (2021–Present)

St. Charles, St. Charles County Smartt Airport (16.8 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    68.6 °F
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