Mason City Weather Forecast

    • 63
    • 85

    Mostly Sunny

    • 59
    • 89

    Slight Chance Thunderstorms

    • 54
    • 75

    Chance Rain Showers

    • 60
    • 77

    Chance Rain Showers

    • 54
    • 83

    Chance Rain Showers

    • 50
    • 66

    Chance Rain Showers

    • 51
    • 67

    Chance Rain Showers

Today 10 Sep Custer

Sunny. A slight chance of Showers in the morning. Highs in the lower 80s. South Winds 10 to 15 Mph. Chance of precipitation 20 percent.

Tonight 10 Sep Custer

Mostly clear. Lows in the lower 60s. South Winds 15 to 20 Mph with Gusts to around 35 Mph.

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  • Temperature Real-Time

Mason City Temperature Statistics

September Temperature

Broken Bow, Broken Bow Municipal Airport (23 miles)

  • Lowest 4 September, 2026

    59.6 °F

  • Average September

    76.6 °F

  • Highest 7 September, 2026

    95 °F

Climate (2021–2026)

Broken Bow, Broken Bow Municipal Airport (23 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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