McCartney Lake Weather Forecast

    • 69
    • 90

    Thunderstorms Likely

    • 68
    • 88

    Rain Showers Likely

    • 65
    • 85

    Rain Showers Likely

    • 63
    • 83

    Partly Sunny

    • 63
    • 84

    Partly Sunny

    • 65
    • 86

    Partly Sunny

    • 66
    • 87

    Slight Chance Thunderstorms

Today 2 Jul Grant

Partly sunny with a chance of Showers and Thunderstorms. Some Thunderstorms may be severe with heavy rainfall. Highs in the upper 80s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 100.

Tonight 2 Jul Grant

Showers likely. A chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds, large Hail, and heavy rainfall this evening. Some Thunderstorms may produce heavy rainfall after midnight. Lows in the upper 60s. West Winds 5 to 10 Mph, becoming south after midnight. Chance of rain 70 percent.

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McCartney Lake Temperature Statistics

July Temperature

Dubuque Regional Airport (21.1 miles)

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Climate (2021–2026)

Dubuque Regional Airport (21.1 miles)

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  • Average Low 2021–2026

    40.6 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    59.4 °F
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