Galena Lake Weather Forecast

    • 71
    • 92

    Slight Chance Thunderstorms

    • 64
    • 86

    Partly Sunny

    • 63
    • 83

    Partly Sunny

    • 66
    • 82

    Mostly Cloudy

    • 72
    • 86

    Chance Thunderstorms

    • 67
    • 87

    Chance Rain Showers

Today 4 Sep Jo Daviess

Sunny with a 20 percent chance of Showers. Hot. Near steady temperature around 90. Southwest Winds 5 to 10 Mph. Heat index Values up to 103.

Tonight 4 Sep Jo Daviess

Partly cloudy in the Evening, then becoming mostly clear. A slight chance of Showers and Thunderstorms. Patchy fog after midnight. Humid with Lows in the lower 70s. West Winds around 5 Mph, becoming northwest after midnight. Chance of rain 20 percent. Heat index Values up to 100 early in the evening.

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Galena Lake Temperature Statistics

September Temperature

Dubuque Regional Airport (18.6 miles)

  • Lowest 1 September, 2026

    69.7 °F

  • Average September

    80.2 °F

  • Highest 1 September, 2026

    91.7 °F

Climate (2021–2026)

Dubuque Regional Airport (18.6 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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