Crooked Slough Weather Forecast

    • 63
    • 82

    Chance Rain Showers

    • 57
    • 79

    Mostly Sunny

    • 56
    • 76

    Partly Sunny

    • 60
    • 76

    Slight Chance Thunderstorms

    • 64
    • 79

    Slight Chance Thunderstorms

Today 21 Aug Grant

Partly sunny with a chance of Showers and Thunderstorms. Humid with Highs in the lower 80s. Southwest Winds 5 to 10 Mph, becoming west in the afternoon. Chance of rain 50 percent.

Tonight 21 Aug Grant

Partly cloudy. Lows in the lower 60s. Northwest Winds 5 to 10 Mph.

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Crooked Slough Temperature Statistics

August Temperature

Dubuque Regional Airport (23.6 miles)

  • Lowest 8 August, 2026

    57.9 °F

  • Average August

    71.4 °F

  • Highest 10 August, 2026

    84 °F

Climate (2021–2026)

Dubuque Regional Airport (23.6 miles)

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  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    59.4 °F
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