Green Castle Recreation Area Weather Forecast

    • 60
    • 81

    Sunny

    • 53
    • 81

    Chance Thunderstorms

    • 53
    • 72

    Mostly Sunny

    • 54
    • 76

    Mostly Sunny

    • 58
    • 79

    Slight Chance Thunderstorms

    • 62
    • 82

    Chance Thunderstorms

Today 12 Jun Marshall

Sunny. Highs in the lower 80s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 12 Jun Marshall

Clear. Near steady temperature in the mid 50s. West Winds around 5 Mph.

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Green Castle Recreation Area Temperature Statistics

June Temperature

Marshalltown, Marshalltown Municipal Airport (12.4 miles)

  • Lowest 2 June, 2026

    53.7 °F

  • Average June

    74.7 °F

  • Highest 9 June, 2026

    90 °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

    50.6 °F

  • Average High 2021–2026

    61.4 °F
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