McCartney Lake Weather Forecast

    • 39
    • 60

    Decreasing Clouds

    • 50
    • 63

    Rain Showers

    • 44
    • 62

    Rain Showers Likely

    • 38
    • 59

    Chance Rain Showers

    • 45
    • 65

    Mostly Sunny

    • 50
    • 72

    Partly Sunny

Today 29 Apr Grant

Mostly cloudy this Morning, then clearing. Much cooler with Highs around 60. Northwest Winds 10 to 20 Mph. Gusts up to 30 Mph this morning.

Tonight 29 Apr Grant

Mostly clear in the Evening, then becoming partly cloudy. Colder with Lows in the upper 30s. North Winds around 5 Mph, becoming east after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

McCartney Lake Temperature Statistics

April Temperature

Dubuque Regional Airport (21.1 miles)

  • Lowest 8 April, 2025

    18.8 °F

  • Average April

    47.8 °F

  • Highest 24 April, 2025

    77 °F

Climate (2020–Present)

Dubuque Regional Airport (21.1 miles)

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  • Average Low 2020–2025

    40.3 °F

  • Average 2020–2025

    49.5 °F

  • Average High 2020–2025

    58.7 °F
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