Grass Island Weather Forecast

    • 44
    • 65

    Becoming Sunny

    • 53
    • 66

    Mostly Sunny

    • 58
    • 66

    Chance Rain Showers

    • 44
    • 67

    Chance Rain Showers

    • 37
    • 52

    Partly Sunny

    • 34
    • 49

    Mostly Cloudy

Today 21 Oct Mille Lacs

Sunny. Patchy fog in the morning. Highs in the upper 60s. Southwest Winds up to 5 Mph shifting to the north in the afternoon.

Tonight 21 Oct Mille Lacs

Clear. Lows in the mid 40s. Northeast Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Island Temperature Statistics

October Temperature

Brainerd - Crow Wing County Airport (23.6 miles)

  • Lowest 16 October, 2026

    31.6 °F

  • Average October

    52.9 °F

  • Highest 10 October, 2026

    89.7 °F

Climate (2021–2026)

Brainerd - Crow Wing County Airport (23.6 miles)

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  • Average Low 2021–2026

    34.3 °F

  • Average 2021–2026

    44.5 °F

  • Average High 2021–2026

    54.5 °F
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