Mark Twain National Wildlife Refuge Weather Forecast

    • 8
    • 30

    Increasing Clouds

    • 3
    • 20

    Mostly Cloudy

    • 0
    • 16

    Partly Sunny

    • 1
    • 18

    Partly Sunny

    • 15
    • 27

    Slight Chance Snow

    • 14
    • 32

    Mostly Cloudy

Today 28 Jan Calhoun

Partly sunny. Highs in the upper 20s. West Winds 5 to 10 Mph. Wind chill Values as low as 12 below in the morning.

Tonight 28 Jan Calhoun

Mostly cloudy. Lows around 6 above. West Winds around 5 Mph, becoming north around 5 Mph after midnight.

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Mark Twain National Wildlife Refuge Temperature Statistics

January Temperature

St. Charles, St. Charles County Smartt Airport (19.3 miles)

  • Lowest 24 January, 2026

    1 °F

  • Average January

    31.2 °F

  • Highest 8 January, 2026

    67.6 °F

Climate (2021–Present)

St. Charles, St. Charles County Smartt Airport (19.3 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    68.6 °F
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