Grass Island Weather Forecast

    • 58
    • 73

    Increasing Clouds

    • 41
    • 64

    Chance Thunderstorms

    • 36
    • 56

    Mostly Sunny

    • 39
    • 58

    Partly Sunny

    • 42
    • 62

    Rain Showers Likely

    • 38
    • 54

    Rain Showers Likely

    • 34
    • 52

    Slight Chance Rain Showers

Today 22 Apr Mille Lacs

Sunny. Highs in the upper 70s. Southeast Winds 15 to 20 Mph.

Tonight 22 Apr Mille Lacs

Warmer. Increasing Clouds. Lows around 60. South Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Island Temperature Statistics

April Temperature

Brainerd - Crow Wing County Airport (23.6 miles)

  • Lowest 7 April, 2026

    9 °F

  • Average April

    39.3 °F

  • Highest 12 April, 2026

    79.6 °F

Climate (2021–Present)

Brainerd - Crow Wing County Airport (23.6 miles)

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  • Average Low 2021–2026

    34.4 °F

  • Average 2021–2026

    44.6 °F

  • Average High 2021–2026

    54.6 °F
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