Mark Twain National Wildlife Refuge Weather Forecast

    • 39
    • 58

    Becoming Sunny

    • 47
    • 64

    Partly Sunny

    • 47
    • 68

    Chance Rain Showers

    • 51
    • 78

    Chance Rain Showers

    • 43
    • 66

    Mostly Sunny

    • 46
    • 69

    Slight Chance Thunderstorms

Today 6 May Mercer

Mostly cloudy. Highs in the upper 50s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 6 May Mercer

Partly cloudy in the Evening, then clearing. Lows in the upper 30s. Northwest Winds 10 to 15 Mph in the Evening, becoming light and variable.

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Mark Twain National Wildlife Refuge Temperature Statistics

May Temperature

Muscatine (19.3 miles)

  • Lowest 2 May, 2026

    35.6 °F

  • Average May

    56.4 °F

  • Highest 4 May, 2026

    84.2 °F

Climate (2021–Present)

Muscatine (19.3 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    63.4 °F
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