Grass Lake Weather Forecast

    • 49
    • 64

    Increasing Clouds

    • 63
    • 76

    Rain Showers Likely

    • 60
    • 74

    Chance Thunderstorms

    • 60
    • 78

    Mostly Sunny

    • 65
    • 81

    Partly Sunny

    • 67
    • 84

    Slight Chance Thunderstorms

    • 64
    • 85

    Slight Chance Thunderstorms

Today 7 Sep Hennepin

Sunny. Highs in the mid 60s. West Winds up to 5 Mph.

Tonight 7 Sep Hennepin

Mostly clear. Lows around 50. South Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Lake Temperature Statistics

September Temperature

Minneapolis - Flying Cloud Airport (1.2 miles)

  • Lowest 4 September, 2025

    43 °F

  • Average September

    59.6 °F

  • Highest 1 September, 2025

    78.1 °F

Climate (2020–Present)

Minneapolis - Flying Cloud Airport (1.2 miles)

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  • Average Low 2020–2025

    39.6 °F

  • Average 2020–2025

    48.6 °F

  • Average High 2020–2025

    57.4 °F
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