Crooked Slough Weather Forecast

    • 54
    • 65

    Rain Showers

    • 50
    • 62

    Chance Rain Showers

    • 45
    • 62

    Partly Sunny

    • 47
    • 65

    Partly Sunny

    • 50
    • 65

    Mostly Cloudy

    • 50
    • 67

    Mostly Cloudy

Today 20 Sep Grant

Cloudy. Near steady temperature in the mid 60s. Northeast Winds 10 to 15 Mph.

Tonight 20 Sep Grant

Mostly cloudy. Lows in the lower 50s. Northeast Winds 10 to 15 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

    71 °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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