Crooked Slough Weather Forecast

    • 64
    • 86

    Chance Thunderstorms

    • 62
    • 81

    Chance Rain Showers

    • 64
    • 81

    Chance Rain Showers

    • 70
    • 88

    Partly Sunny

Today 5 Sep Grant

Areas of fog this morning. Mostly sunny. Highs in the mid 80s. Northeast Winds 5 to 10 Mph.

Tonight 5 Sep Grant

Partly cloudy. Humid with Lows in the lower 60s. East Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crooked Slough Temperature Statistics

September Temperature

Dubuque Regional Airport (23.6 miles)

  • Lowest 1 September, 2026

    69.7 °F

  • Average September

    80.2 °F

  • Highest 1 September, 2026

    91.7 °F

Climate (2021–2026)

Dubuque Regional Airport (23.6 miles)

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  • Average Low 2021–2026

    40.6 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    59.4 °F
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