Grant Lake Weather Forecast
- 58
- 81
Mostly Sunny
- 52
- 80
Rain Showers
- 54
- 77
Slight Chance Thunderstorms
- 53
- 77
Chance Rain Showers
- 51
- 76
Slight Chance Thunderstorms
- 52
- 76
Partly Sunny
Today 6 Aug Iron
Sunny. Highs in the lower 80s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.
Tonight 6 Aug Iron
Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. South Winds 5 to 10 Mph with Gusts up to 25 Mph.
Grant Lake Temperature Statistics
August Temperature
Manitowish Waters Airport (9.3 miles)
Lowest 2 August, 2026
51.3 °FAverage August
67.8 °FHighest 3 August, 2026
83.5 °F
Climate (2021–2026)
Manitowish Waters Airport (9.3 miles)
Average Low 2021–2026
29.7 °FAverage 2021–2026
40.6 °FAverage High 2021–2026
50.2 °F