McCartney Lake Weather Forecast

    • 73
    • 92

    Chance Rain Showers

    • 65
    • 89

    Mostly Sunny

    • 68
    • 87

    Chance Thunderstorms

    • 70
    • 90

    Slight Chance Thunderstorms

    • 60
    • 84

    Mostly Sunny

    • 60
    • 80

    Mostly Sunny

Today 17 Jul Grant

Mostly sunny. Isolated Showers and Thunderstorms in the afternoon. Hot with Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 100 in the afternoon.

Tonight 17 Jul Grant

Partly cloudy. Humid with Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Heat index Values in the mid 90s early in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

McCartney Lake Temperature Statistics

July Temperature

Dubuque Regional Airport (21.1 miles)

  • Lowest 12 July, 2026

    62.1 °F

  • Average July

    76.1 °F

  • Highest 14 July, 2026

    91 °F

Climate (2021–2026)

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

    50.1 °F

  • Average High 2021–2026

    59.5 °F
Get WillyWeather+ to remove ads