Castle Rock Weather Forecast

    • 65
    • 83

    Rain Showers Likely

    • 62
    • 79

    Rain Showers Likely

    • 59
    • 73

    Chance Thunderstorms

    • 60
    • 74

    Chance Thunderstorms

    • 60
    • 78

    Chance Thunderstorms

    • 55
    • 77

    Slight Chance Thunderstorms

    • 52
    • 72

    Mostly Sunny

Today 17 Sep Dakota

Mostly sunny. A 20 percent chance of Thunderstorms late in the afternoon. Near steady temperature in the lower 80s. South Winds up to 5 Mph.

Tonight 17 Sep Dakota

Mostly cloudy. Chance of Thunderstorms through the night. Showers likely after midnight. Lows in the mid 60s. Southeast Winds up to 5 Mph. Chance of precipitation 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castle Rock Temperature Statistics

September Temperature

Minneapolis, Airlake Airport (6.8 miles)

  • Lowest 7 September, 2025

    41 °F

  • Average September

    61.9 °F

  • Highest 14 September, 2025

    89.6 °F

Climate (2020–Present)

Minneapolis, Airlake Airport (6.8 miles)

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  • Average Low 2020–2025

    36.9 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    56.3 °F
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