Crooked Slough Weather Forecast

    • 62
    • 72

    Rain Showers

    • 52
    • 67

    Rain Showers Likely

    • 45
    • 65

    Mostly Sunny

    • 49
    • 64

    Partly Sunny

    • 44
    • 64

    Mostly Sunny

    • 46
    • 61

    Mostly Sunny

Today 30 Sep Grant

A slight chance of Thunderstorms in the morning. Cloudy with a chance of Showers. Humid with Highs in the lower 70s. South Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 30 Sep Grant

Showers with Lows in the lower 60s. Light Winds. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crooked Slough Temperature Statistics

September Temperature

Dubuque Regional Airport (23.6 miles)

  • Lowest 23 September, 2026

    47.6 °F

  • Average September

    67.6 °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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