Sterling State Park Weather Forecast

    • 51
    • 72

    Mostly Sunny

    • 53
    • 70

    Mostly Sunny

    • 58
    • 71

    Mostly Cloudy

    • 62
    • 71

    Chance Rain Showers

    • 60
    • 72

    Chance Rain Showers

    • 56
    • 67

    Chance Rain Showers

Today 27 Sep Monroe

Patchy fog in the morning. Sunny. Highs in the lower 70s. North Winds 5 to 10 Mph.

Tonight 27 Sep Monroe

Mostly clear. Patchy fog after midnight. Lows around 50. North Winds up to 10 Mph.

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Sterling State Park Temperature Statistics

September Temperature

Monroe, Custer Airport (5 miles)

  • Lowest 14 September, 2026

    44.6 °F

  • Average September

    67.9 °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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