Island Lake Weather Forecast
- 35
- 55
Decreasing Clouds
- 38
- 63
Partly Sunny
- 42
- 63
Mostly Cloudy
- 44
- 59
Slight Chance Thunderstorms
- 48
- 68
Slight Chance Rain Showers
- 52
- 76
Slight Chance Thunderstorms
Today 20 May Vilas
Partly cloudy. Areas of frost in the morning. Highs in the upper 50s. North wind 5 to 10 Mph.
Tonight 20 May Vilas
Partly cloudy. Areas of frost after midnight. Lows in the middle 30s. Light and variable wind.
Island Lake Temperature Statistics
May Temperature
Manitowish Waters Airport (3.7 miles)
Lowest 2 May, 2026
22.8 °FAverage May
45.8 °FHighest 15 May, 2026
80.4 °F
Climate (2021–Present)
Manitowish Waters Airport (3.7 miles)
Average Low 2021–2026
29.6 °FAverage 2021–2026
40.6 °FAverage High 2021–2026
50.2 °F