Long Slough Weather Forecast

    • 72
    • 94

    Increasing Clouds

    • 71
    • 91

    Slight Chance Thunderstorms

    • 72
    • 91

    Chance Thunderstorms

    • 69
    • 91

    Mostly Sunny

    • 70
    • 89

    Partly Sunny

    • 68
    • 89

    Slight Chance Thunderstorms

Today 15 Jul Grant

Patchy fog this morning. Mostly sunny. Hot with Highs in the mid 90s. Light Winds.

Tonight 15 Jul Grant

Partly cloudy in the Evening, then becoming mostly cloudy. Humid with Lows in the lower 70s. Northwest Winds around 5 Mph in the Evening, becoming light and variable. Heat index Values up to 100 early in the evening.

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Long Slough Temperature Statistics

July Temperature

Dubuque Regional Airport (23 miles)

  • Lowest 12 July, 2026

    62.1 °F

  • Average July

    75.7 °F

  • Highest 1 July, 2026

    90 °F

Climate (2021–2026)

Dubuque Regional Airport (23 miles)

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  • Average Low 2021–2026

    40.6 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    59.4 °F
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