Island Lake Weather Forecast
- 43
- 68
Increasing Clouds
- 48
- 65
Mostly Cloudy
- 46
- 70
Partly Sunny
- 48
- 68
Chance Rain Showers
- 49
- 65
Mostly Cloudy
- 52
- 70
Chance Rain Showers
- 49
- 66
Rain Showers Likely
Today 23 Sep Vilas
Sunny. Highs in the middle 60s. Southeast wind 5 to 10 Mph.
Tonight 23 Sep Vilas
Clear in the evening then becoming partly cloudy. Lows in the lower 40s. Light and variable wind.
Island Lake Temperature Statistics
September Temperature
Manitowish Waters Airport (3.7 miles)
Lowest 14 September, 2026
37 °FAverage September
65.6 °FHighest 1 September, 2026
92.7 °F
Climate (2021–2026)
Manitowish Waters Airport (3.7 miles)
Average Low 2021–2026
29.8 °FAverage 2021–2026
40.7 °FAverage High 2021–2026
50.3 °F