Island Lake Weather Forecast
- 35
- 66
Becoming Sunny
- 55
- 79
Partly Sunny
- 44
- 75
Breezy
- 51
- 75
Breezy
- 56
- 85
Breezy
- 56
- 87
Partly Sunny
Today 10 May McCook
Sunny. Highs in the upper 60s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.
Tonight 10 May McCook
Mostly clear. Lows in the mid 30s. North Winds 10 to 15 Mph, becoming east after midnight.
Island Lake Temperature Statistics
May Temperature
Madison Municipal Airport (14.9 miles)
Lowest 6 May, 2026
24.8 °FAverage May
48.9 °FHighest 8 May, 2026
71.6 °F
Climate (2021–Present)
Madison Municipal Airport (14.9 miles)
Average Low 2021–2026
37.3 °FAverage 2021–2026
47.7 °FAverage High 2021–2026
58.3 °F