Grant Lake Weather Forecast

    • 58
    • 77

    Chance Thunderstorms

    • 54
    • 80

    Rain Showers Likely

    • 53
    • 81

    Mostly Sunny

    • 56
    • 85

    Partly Sunny

    • 60
    • 88

    Chance Rain Showers

    • 60
    • 88

    Chance Rain Showers

Today 4 Jun Iron

Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Highs in the upper 70s. Southwest Winds around 10 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 4 Jun Iron

Partly cloudy. Lows in the upper 50s. South Winds 5 to 10 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant Lake Temperature Statistics

June Temperature

Manitowish Waters Airport (9.3 miles)

  • Lowest 1 June, 2026

    42.3 °F
  • Average June

    63.6 °F
  • Highest 1 June, 2026

    79.7 °F

Climate (2021–Present)

Manitowish Waters Airport (9.3 miles)

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  • Average Low 2021–2026

    29.6 °F
  • Average 2021–2026

    40.6 °F
  • Average High 2021–2026

    50.2 °F
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