Grass Lake Weather Forecast

    • 66
    • 85

    Increasing Clouds

    • 65
    • 82

    Chance Rain Showers

    • 67
    • 82

    Rain Showers Likely

    • 62
    • 86

    Slight Chance Thunderstorms

    • 56
    • 79

    Mostly Sunny

    • 59
    • 81

    Mostly Sunny

Today 5 Sep Hennepin

Mostly cloudy. Patchy fog early in the morning. Highs in the mid 80s. Northeast Winds 5 to 10 Mph.

Tonight 5 Sep Hennepin

Partly cloudy. A 20 percent chance of Thunderstorms after midnight. Lows in the upper 60s. Southeast Winds 5 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 1 September, 2026

    63 °F

  • Average September

    74.7 °F

  • Highest 2 September, 2026

    87.1 °F

Climate (2021–2026)

Minneapolis - Flying Cloud Airport (1.2 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    57.6 °F
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