Castle Rock Weather Forecast

    • 41
    • 60

    Rain Showers

    • 46
    • 65

    Mostly Sunny

    • 58
    • 72

    Chance Thunderstorms

    • 55
    • 74

    Slight Chance Rain Showers

    • 55
    • 76

    Mostly Sunny

    • 59
    • 76

    Partly Sunny

    • 61
    • 77

    Chance Rain Showers

Today 6 Sep Dakota

Mostly cloudy. Isolated Thunderstorms early in the Afternoon, then scattered rain Showers and isolated Thunderstorms late in the afternoon. Near steady temperature in the upper 50s. Northwest Winds around 10 Mph. Chance of precipitation 50 percent.

Tonight 6 Sep Dakota

Partly cloudy with scattered rain Showers and isolated Thunderstorms early in the Evening, then clear in the late evening and overnight. Lows in the lower 40s. West Winds up to 10 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castle Rock Temperature Statistics

September Temperature

Minneapolis, Airlake Airport (6.8 miles)

  • Lowest 4 September, 2025

    42.8 °F

  • Average September

    59.7 °F

  • Highest 1 September, 2025

    78.8 °F

Climate (2020–Present)

Minneapolis, Airlake Airport (6.8 miles)

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  • Average Low 2020–2025

    36.8 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    56.2 °F
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