Mark Twain National Wildlife Refuge Weather Forecast

    • 57
    • 67

    Chance Rain Showers

    • 59
    • 65

    Rain Showers Likely

    • 58
    • 68

    Mostly Cloudy

    • 60
    • 72

    Partly Sunny

    • 63
    • 72

    Rain Showers Likely

    • 61
    • 71

    Chance Rain Showers

Today 25 Sep Mercer

Showers Likely, mainly this morning. Highs in the mid 60s. East Winds around 5 Mph. Chance of rain 60 percent.

Tonight 25 Sep Mercer

Mostly cloudy. Lows in the upper 50s. East Winds around 5 Mph.

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Mark Twain National Wildlife Refuge Temperature Statistics

September Temperature

Muscatine (19.3 miles)

  • Lowest 23 September, 2026

    50 °F

  • Average September

    72.4 °F

  • Highest 1 September, 2026

    96.8 °F

Climate (2021–2026)

Muscatine (19.3 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    63.4 °F
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