Crooked Slough Weather Forecast

    • 64
    • 86

    Slight Chance Thunderstorms

    • 63
    • 86

    Slight Chance Thunderstorms

    • 62
    • 85

    Slight Chance Rain Showers

    • 62
    • 84

    Chance Rain Showers

    • 60
    • 76

    Chance Thunderstorms

    • 59
    • 75

    Chance Rain Showers

    • 59
    • 76

    Slight Chance Thunderstorms

Today 15 Sep Grant

Mostly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the mid 80s. Southeast Winds around 5 Mph. Chance of rain 20 percent.

Tonight 15 Sep Grant

Mostly cloudy. A slight chance of Showers and Thunderstorms early this evening. Lows in the lower 60s. Southeast Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crooked Slough Temperature Statistics

September Temperature

Dubuque Regional Airport (23.6 miles)

  • Lowest 7 September, 2025

    39.9 °F

  • Average September

    61.8 °F

  • Highest 13 September, 2025

    86 °F

Climate (2020–Present)

Dubuque Regional Airport (23.6 miles)

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  • Average Low 2020–2025

    40.3 °F

  • Average 2020–2025

    49.6 °F

  • Average High 2020–2025

    58.9 °F
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