Mason City Weather Forecast

    • 52
    • 75

    Becoming Sunny

    • 49
    • 68

    Rain Showers

    • 58
    • 72

    Rain Showers

    • 51
    • 68

    Chance Rain Showers

    • 53
    • 66

    Chance Rain Showers

    • 51
    • 69

    Chance Rain Showers

Today 12 Sep Cerro Gordo

Mostly sunny. Highs in the mid 70s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 12 Sep Cerro Gordo

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. North Winds around 5 Mph.

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 9 September, 2026

    60.1 °F

  • Average September

    75.1 °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