Grant Lake Weather Forecast

    • 64
    • 85

    Slight Chance Thunderstorms

    • 57
    • 77

    Chance Rain Showers

    • 52
    • 79

    Mostly Sunny

    • 57
    • 80

    Mostly Sunny

    • 63
    • 85

    Partly Sunny

    • 57
    • 82

    Chance Rain Showers

Today 30 Jul Iron

Partly sunny. A slight chance of Showers this morning. Hot with Highs in the mid 80s. Southwest Winds 5 to 10 Mph, becoming west this afternoon. Chance of rain 20 percent.

Tonight 30 Jul Iron

Mostly cloudy. A slight chance of Showers and Thunderstorms after midnight. Humid with Lows in the mid 60s. South Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant Lake Temperature Statistics

July Temperature

Manitowish Waters Airport (9.3 miles)

  • Lowest 22 July, 2026

    39.4 °F

  • Average July

    69.8 °F

  • Highest 13 July, 2026

    90.7 °F

Climate (2021–2026)

Manitowish Waters Airport (9.3 miles)

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  • Average Low 2021–2026

    29.7 °F

  • Average 2021–2026

    40.6 °F

  • Average High 2021–2026

    50.2 °F
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