Bertom Lake Weather Forecast

    • 59
    • 83

    Mostly Sunny

    • 64
    • 86

    Rain Showers Likely

    • 64
    • 83

    Rain Showers Likely

    • 62
    • 86

    Chance Thunderstorms

    • 63
    • 87

    Chance Rain Showers

    • 65
    • 88

    Chance Rain Showers

Today 3 Jun Grant

Mostly sunny. Highs in the lower 80s. South Winds 5 to 10 Mph.

Tonight 3 Jun Grant

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bertom Lake Temperature Statistics

June Temperature

Dubuque Regional Airport (23 miles)

  • Lowest 1 June, 2026

    61 °F

  • Average June

    69.8 °F

  • Highest 1 June, 2026

    79 °F

Climate (2021–Present)

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

    59.5 °F
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