Crooked Slough Weather Forecast

    • 52
    • 65

    Partly Sunny

    • 57
    • 66

    Mostly Cloudy

    • 53
    • 66

    Mostly Cloudy

    • 54
    • 62

    Mostly Cloudy

Today 23 Sep Grant

Mostly cloudy with a 50 percent chance of Showers. Highs in the mid 60s.

Tonight 23 Sep Grant

Partly cloudy. Lows in the lower 50s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crooked Slough Temperature Statistics

September Temperature

Dubuque Regional Airport (23.6 miles)

  • Lowest 14 September, 2026

    48.7 °F

  • Average September

    69.8 °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

    40.7 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    59.4 °F
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