Island Lake Weather Forecast
- 39
- 53
Partly Sunny
- 35
- 50
Chance Rain Showers
- 29
- 42
Partly Sunny
- 29
- 46
Partly Sunny
- 35
- 52
Partly Sunny
- 37
- 54
Partly Sunny
Today 19 Oct Mahnomen
Sunny. Highs in the mid 50s. West Winds 5 to 15 Mph.
Tonight 19 Oct Mahnomen
Partly cloudy in the Evening, then cloudy. Lows 40 to 45. Southeast Winds 5 to 15 Mph.
Island Lake Temperature Statistics
October Temperature
Fosston, Fosston Municipal Airport (11.2 miles)
Lowest 7 October, 2025
28.4 °FAverage October
54.9 °FHighest 3 October, 2025
87.8 °F
Climate (2020–Present)
Fosston, Fosston Municipal Airport (11.2 miles)
Average Low 2020–2025
30.4 °FAverage 2020–2025
40.3 °FAverage High 2020–2025
49.6 °F