Mason City Weather Forecast

    • 55
    • 67

    Chance Rain Showers

    • 56
    • 70

    Mostly Cloudy

    • 58
    • 67

    Rain Showers

    • 56
    • 70

    Chance Rain Showers

    • 51
    • 68

    Chance Rain Showers

    • 50
    • 65

    Slight Chance Rain Showers

Today 27 Sep Cerro Gordo

Mostly cloudy. A chance of Showers, mainly in the morning. Highs in the upper 60s. Southeast Winds around 5 Mph. Chance of rain 50 percent.

Tonight 27 Sep Cerro Gordo

Mostly cloudy. Patchy fog after midnight. Lows in the mid 50s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mason City Temperature Statistics

September Temperature

Mason City Municipal Airport (6.2 miles)

  • Lowest 23 September, 2026

    42.7 °F

  • Average September

    66.9 °F

  • Highest 4 September, 2026

    90.6 °F

Climate (2021–2026)

Mason City Municipal Airport (6.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    37.3 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    58.6 °F
Get WillyWeather+ to remove ads