Green Castle Recreation Area Weather Forecast

    • 32
    • 53

    Breezy

    • 29
    • 44

    Chance Snow

    • 32
    • 45

    Rain/Snow

    • 6
    • 38

    Rain/Snow

    • 1
    • 20

    Partly Sunny

    • 17
    • 31

    Chance Snow

Today 12 Mar Marshall

Mostly cloudy and windy. Highs in the lower 50s. South Winds 20 to 30 Mph with Gusts up to 40 Mph.

Tonight 12 Mar Marshall

Mostly cloudy. Rain Showers Likely, mainly in the evening. Very windy with Lows in the lower 30s. Southwest Winds 25 to 30 Mph with Gusts up to 45 Mph, becoming west 25 to 35 Mph with Gusts up to 55 Mph after midnight. Chance of rain 70 percent.

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Green Castle Recreation Area Temperature Statistics

March Temperature

Marshalltown, Marshalltown Municipal Airport (12.4 miles)

  • Lowest 1 March, 2026

    17.7 °F

  • Average March

    41.9 °F

  • Highest 9 March, 2026

    69.1 °F

Climate (2021–Present)

Marshalltown, Marshalltown Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    61.2 °F
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