Grant Lake Weather Forecast

    • 50
    • 79

    Mostly Sunny

    • 55
    • 88

    Mostly Sunny

    • 50
    • 82

    Slight Chance Thunderstorms

    • 52
    • 84

    Mostly Sunny

    • 49
    • 81

    Mostly Sunny

    • 51
    • 81

    Mostly Sunny

Today 28 May Iron

Sunny. Highs in the upper 70s. Southeast Winds around 5 Mph.

Tonight 28 May Iron

Mostly clear. Lows around 50. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant Lake Temperature Statistics

May Temperature

Manitowish Waters Airport (9.3 miles)

  • Lowest 2 May, 2026

    22.8 °F

  • Average May

    48.8 °F

  • Highest 25 May, 2026

    81.3 °F

Climate (2021–Present)

Manitowish Waters Airport (9.3 miles)

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  • Average Low 2021–2026

    29.6 °F

  • Average 2021–2026

    40.5 °F

  • Average High 2021–2026

    50.2 °F
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