Crooked Slough Weather Forecast

    • 64
    • 80

    Slight Chance Thunderstorms

    • 55
    • 80

    Partly Sunny

    • 55
    • 72

    Rain Showers Likely

    • 61
    • 79

    Rain Showers

    • 54
    • 72

    Chance Rain Showers

    • 58
    • 72

    Chance Rain Showers

Today 11 Sep Grant

Patchy fog this morning. Mostly sunny. Highs in the upper 70s. South Winds 5 to 10 Mph.

Tonight 11 Sep Grant

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers after midnight. Lows in the mid 60s. South Winds 5 to 10 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, 2026

    61.6 °F

  • Average September

    77.3 °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

    59.5 °F
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