Sterling State Park Weather Forecast

    • 57
    • 77

    Chance Rain Showers

    • 59
    • 76

    Mostly Sunny

    • 60
    • 76

    Partly Sunny

    • 69
    • 81

    Chance Rain Showers

    • 66
    • 86

    Chance Rain Showers

    • 58
    • 77

    Slight Chance Thunderstorms

Today 5 Sep Monroe

Mostly cloudy with a chance of Showers until late Afternoon, then partly cloudy in the late afternoon. Highs in the upper 70s. Northeast Winds 5 to 15 Mph. Chance of rain 30 percent.

Tonight 5 Sep Monroe

Clear. Lows in the mid 50s. Northeast Winds 5 to 10 Mph.

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Sterling State Park Temperature Statistics

September Temperature

Monroe, Custer Airport (5 miles)

  • Lowest 3 September, 2026

    66.2 °F

  • Average September

    79.5 °F

  • Highest 2 September, 2026

    95 °F

Climate (2021–2026)

Monroe, Custer Airport (5 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    60.3 °F
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