Green Castle Airport Weather Forecast

    • 64
    • 81

    Chance Thunderstorms

    • 60
    • 81

    Mostly Cloudy

    • 63
    • 80

    Mostly Sunny

    • 64
    • 82

    Chance Rain Showers

    • 60
    • 80

    Partly Sunny

    • 62
    • 78

    Mostly Cloudy

Today 18 Aug Johnson

Cloudy late this Morning, then becoming partly sunny. A chance of Showers. A slight chance of Thunderstorms late this Morning, then a chance of Thunderstorms this afternoon. Highs in the lower 80s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 18 Aug Johnson

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly cloudy with a slight chance of Showers and Thunderstorms after midnight. Humid with Lows in the mid 60s. West Winds 5 to 10 Mph, becoming north after midnight. Chance of rain 50 percent.

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Green Castle Airport Temperature Statistics

August Temperature

Cedar Rapids Airport (8.7 miles)

  • Lowest 3 August, 2026

    60.1 °F

  • Average August

    72.8 °F

  • Highest 10 August, 2026

    87.1 °F

Climate (2021–2026)

Cedar Rapids Airport (8.7 miles)

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  • Average Low 2021–2026

    40.6 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    61.5 °F
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