Castle Rock Weather Forecast

    • 45
    • 70

    Partly Sunny

    • 37
    • 62

    Mostly Sunny

    • 33
    • 58

    Mostly Sunny

    • 45
    • 64

    Chance Rain Showers

    • 42
    • 66

    Chance Rain Showers

    • 47
    • 70

    Partly Sunny

Today 8 May Dakota

Warmer. Increasing Clouds. Highs around 70. West Winds 5 to 15 Mph.

Tonight 8 May Dakota

Partly cloudy. A 20 percent chance of rain Showers after midnight. Lows in the mid 40s. West Winds 5 to 10 Mph.

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Castle Rock Temperature Statistics

May Temperature

Minneapolis, Airlake Airport (6.8 miles)

  • Lowest 5 May, 2026

    33.8 °F

  • Average May

    51.1 °F

  • Highest 3 May, 2026

    68 °F

Climate (2021–Present)

Minneapolis, Airlake Airport (6.8 miles)

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  • Average Low 2021–2026

    37 °F

  • Average 2021–2026

    47 °F

  • Average High 2021–2026

    56.6 °F
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