Sterling State Park Weather Forecast

    • 52
    • 80

    Partly Sunny

    • 57
    • 69

    Partly Sunny

    • 66
    • 81

    Rain Showers Likely

    • 67
    • 78

    Rain Showers Likely

    • 62
    • 79

    Rain Showers Likely

    • 58
    • 74

    Slight Chance Rain Showers

Today 13 Sep Monroe

Partly cloudy. Highs around 80. Northwest Winds 5 to 15 Mph.

Tonight 13 Sep Monroe

Clear. Lows around 50. Northwest Winds 5 to 15 Mph.

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Sterling State Park Temperature Statistics

September Temperature

Monroe, Custer Airport (5 miles)

  • Lowest 6 September, 2026

    55.4 °F

  • Average September

    73 °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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