Grass Island Weather Forecast

    • -4
    • 13

    Decreasing Clouds

    • -2
    • 8

    Cold

    • 11
    • 19

    Chance Snow

    • 13
    • 28

    Snow

    • 3
    • 19

    Slight Chance Snow

    • 1
    • 13

    Slight Chance Snow

Today 6 Dec Mille Lacs

Colder, cloudy. Highs around 13. North Winds up to 5 Mph.

Tonight 6 Dec Mille Lacs

Colder. Mostly cloudy in the evening then clearing. Lows around 4 below. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Island Temperature Statistics

December Temperature

Brainerd - Crow Wing County Airport (23.6 miles)

  • Lowest 3 December, 2025

    -2.9 °F

  • Average December

    11.1 °F

  • Highest 2 December, 2025

    21.9 °F

Climate (2020–Present)

Brainerd - Crow Wing County Airport (23.6 miles)

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  • Average Low 2020–2025

    34.7 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    54.7 °F
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