McCartney Lake Weather Forecast
- 54
- 74
Decreasing Clouds
- 53
- 74
Partly Sunny
- 50
- 70
Mostly Cloudy
- 47
- 64
Mostly Cloudy
- 49
- 62
Mostly Cloudy
- 49
- 67
Chance Rain Showers
Today 23 Oct Grant
Areas of fog this morning. Mostly sunny. Highs in the mid 70s. Southeast Winds 5 to 10 Mph.
Tonight 23 Oct Grant
Mostly cloudy. Lows in the mid 50s. Southeast Winds 5 to 10 Mph.
McCartney Lake Temperature Statistics
October Temperature
Dubuque Regional Airport (21.1 miles)
Lowest 17 October, 2026
30.7 °FAverage October
58.6 °FHighest 12 October, 2026
86.6 °F
Climate (2021–2026)
Dubuque Regional Airport (21.1 miles)
Average Low 2021–2026
40.7 °FAverage 2021–2026
50.1 °FAverage High 2021–2026
59.4 °F