McCartney Lake Weather Forecast

    • 26
    • 49

    Becoming Sunny

    • 35
    • 49

    Partly Sunny

    • 39
    • 55

    Mostly Cloudy

    • 45
    • 62

    Mostly Cloudy

    • 29
    • 62

    Mostly Cloudy

    • 26
    • 44

    Mostly Sunny

Today 22 Mar Grant

Mostly cloudy and much cooler. Near steady temperature in the mid 40s. North Winds 10 to 15 Mph.

Tonight 22 Mar Grant

Partly cloudy in the Evening, then becoming clear. Much Colder with Lows in the mid 20s. North Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

McCartney Lake Temperature Statistics

March Temperature

Dubuque Regional Airport (21.1 miles)

  • Lowest 16 March, 2026

    10.9 °F

  • Average March

    39.3 °F

  • Highest 20 March, 2026

    71.1 °F

Climate (2021–Present)

Dubuque Regional Airport (21.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    40.6 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    59.3 °F
Get WillyWeather+ to remove ads