Mark Twain National Wildlife Refuge Weather Forecast

    • 45
    • 78

    Decreasing Clouds

    • 43
    • 66

    Mostly Sunny

    • 48
    • 68

    Mostly Sunny

    • 51
    • 80

    Slight Chance Thunderstorms

    • 46
    • 72

    Mostly Sunny

    • 54
    • 75

    Chance Rain Showers

Today 9 May Mercer

Sunny. Highs in the upper 70s. West Winds 10 to 15 Mph. Gusts up to 30 Mph this afternoon.

Tonight 9 May Mercer

Mostly cloudy in the Evening, then clearing. Lows in the mid 40s. North Winds 10 to 15 Mph with Gusts up to 25 Mph, Diminishing to around 5 Mph after midnight.

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Mark Twain National Wildlife Refuge Temperature Statistics

May Temperature

Muscatine (19.3 miles)

  • Lowest 7 May, 2026

    32 °F

  • Average May

    54 °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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