Thornton Weather Forecast

    • 54
    • 83

    Rain Showers

    • 58
    • 82

    Rain Showers

    • 50
    • 79

    Rain Showers

    • 40
    • 62

    Breezy

    • 39
    • 60

    Partly Sunny

    • 42
    • 65

    Partly Sunny

    • 47
    • 69

    Partly Sunny

Today 16 May Cerro Gordo

Mostly sunny. Near steady temperature in the upper 70s. Northeast Winds 5 to 10 Mph.

Tonight 16 May Cerro Gordo

Mostly cloudy. A chance of Showers and Thunderstorms. Lows in the upper 50s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thornton Temperature Statistics

May Temperature

Mason City Municipal Airport (14.3 miles)

  • Lowest 2 May, 2026

    29.6 °F

  • Average May

    53 °F

  • Highest 12 May, 2026

    79.6 °F

Climate (2021–Present)

Mason City Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    37.2 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    58.6 °F
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