Mark Twain National Wildlife Refuge Weather Forecast

    • 53
    • 63

    Increasing Clouds

    • 19
    • 68

    Rain

    • 11
    • 27

    Chance Snow

    • 29
    • 36

    Chance Rain/Snow

    • 38
    • 64

    Mostly Sunny

    • 46
    • 71

    Mostly Sunny

Today 14 Mar Calhoun

Mostly sunny. Highs around 60. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 14 Mar Calhoun

Partly cloudy in the Evening, then becoming mostly cloudy. Not as cool with Lows around 50. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mark Twain National Wildlife Refuge Temperature Statistics

March Temperature

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

  • Lowest 1 March, 2026

    26.1 °F

  • Average March

    52.5 °F

  • Highest 10 March, 2026

    84.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    68.7 °F
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