Luxemburg Weather Forecast

    • 69
    • 89

    Slight Chance Thunderstorms

    • 65
    • 88

    Partly Sunny

    • 64
    • 82

    Mostly Cloudy

    • 66
    • 81

    Chance Thunderstorms

    • 70
    • 86

    Rain Showers Likely

    • 66
    • 85

    Chance Rain Showers

Today 4 Sep Dubuque

Mostly sunny. A slight chance of Showers with isolated Thunderstorms late this morning. Hot with Highs around 90. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 103 this afternoon.

Tonight 4 Sep Dubuque

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Patchy fog after midnight. Humid with Lows around 70. West Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 102 early in the evening.

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Luxemburg Temperature Statistics

September Temperature

Dubuque Regional Airport (23 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 (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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