Mark Twain National Wildlife Refuge Weather Forecast

    • 73
    • 82

    Mostly Cloudy

    • 76
    • 90

    Partly Sunny

    • 74
    • 93

    Mostly Sunny

    • 72
    • 92

    Chance Thunderstorms

    • 71
    • 87

    Chance Thunderstorms

    • 72
    • 88

    Slight Chance Thunderstorms

    • 72
    • 91

    Mostly Sunny

Today 21 Jul Mercer

Mostly cloudy. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 21 Jul Mercer

Mostly cloudy. Humid with Lows in the lower 70s. Southeast Winds 5 to 10 Mph.

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Mark Twain National Wildlife Refuge Temperature Statistics

July Temperature

Muscatine (19.3 miles)

  • Lowest 18 July, 2025

    60.8 °F

  • Average July

    76.4 °F

  • Highest 3 July, 2025

    93.2 °F

Climate (2020–Present)

Muscatine (19.3 miles)

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  • Average Low 2020–2025

    42.1 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    62.8 °F
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