Mark Twain National Wildlife Refuge Weather Forecast

    • 67
    • 82

    Rain Showers

    • 48
    • 74

    Mostly Cloudy

    • 46
    • 66

    Partly Sunny

    • 50
    • 69

    Chance Rain Showers

    • 53
    • 73

    Chance Rain Showers

    • 57
    • 80

    Partly Sunny

Today 18 May Mercer

Cloudy. Highs in the lower 80s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 18 May Mercer

Mostly cloudy. Showers likely with a chance of Thunderstorms after midnight. Humid with Lows in the mid 60s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

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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

    59.7 °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

    53.1 °F

  • Average High 2021–2026

    63.5 °F
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