Mark Twain National Wildlife Refuge Weather Forecast

    • 72
    • 84

    Rain Showers Likely

    • 73
    • 88

    Rain Showers Likely

    • 66
    • 85

    Chance Thunderstorms

    • 63
    • 81

    Partly Sunny

    • 68
    • 83

    Chance Rain Showers

    • 65
    • 83

    Chance Thunderstorms

Today 14 Aug Mercer

Mostly cloudy. Showers and Thunderstorms Likely, mainly in the morning. Humid with Highs in the lower 80s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 14 Aug Mercer

Occasional Showers and Thunderstorms. Near steady temperature in the lower 70s. Northeast Winds 5 to 10 Mph. Chance of rain 80 percent.

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Mark Twain National Wildlife Refuge Temperature Statistics

August Temperature

Muscatine (19.3 miles)

  • Lowest 3 August, 2026

    60.8 °F

  • Average August

    74.6 °F

  • Highest 10 August, 2026

    89.6 °F

Climate (2021–2026)

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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