Old Mill Park Weather Forecast

    • 64
    • 76

    Chance Thunderstorms

    • 59
    • 84

    Chance Rain Showers

    • 55
    • 73

    Rain Showers

    • 52
    • 65

    Chance Rain Showers

    • 51
    • 67

    Slight Chance Rain Showers

    • 54
    • 68

    Chance Rain Showers

Today 17 Sep Custer

Mostly cloudy in the Morning, then becoming partly sunny. Areas of dense fog in the morning. A slight chance of Showers and Thunderstorms. Highs in the upper 70s. East Winds up to 10 Mph, becoming southeast in the afternoon. Chance of precipitation 20 percent.

Tonight 17 Sep Custer

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the mid 60s. Southeast Winds 10 to 20 Mph. Chance of precipitation 50 percent.

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Old Mill Park Temperature Statistics

September Temperature

Broken Bow, Broken Bow Municipal Airport (28 miles)

  • Lowest 10 September, 2026

    49.6 °F

  • Average September

    72.7 °F

  • Highest 7 September, 2026

    96.7 °F

Climate (2021–2026)

Broken Bow, Broken Bow Municipal Airport (28 miles)

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  • Average Low 2021–2026

    37.8 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    65 °F
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