Grant Lake Weather Forecast

    • 52
    • 75

    Mostly Sunny

    • 60
    • 82

    Rain Showers Likely

    • 42
    • 72

    Partly Sunny

    • 41
    • 64

    Partly Sunny

    • 48
    • 68

    Rain Showers

    • 42
    • 69

    Partly Sunny

Today 10 Sep Iron

Sunny. Highs in the mid 70s. West Winds around 5 Mph.

Tonight 10 Sep Iron

Mostly clear. Lows in the lower 50s. Southwest Winds around 5 Mph, increasing to south 10 to 15 Mph with Gusts up to 25 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant Lake Temperature Statistics

September Temperature

Manitowish Waters Airport (9.3 miles)

  • Lowest 1 September, 2026

    56.8 °F

  • Average September

    72.6 °F

  • Highest 1 September, 2026

    92.7 °F

Climate (2021–2026)

Manitowish Waters Airport (9.3 miles)

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  • Average Low 2021–2026

    29.7 °F

  • Average 2021–2026

    40.7 °F

  • Average High 2021–2026

    50.3 °F
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