Grafton Weather Forecast

    • 64
    • 82

    Rain Showers

    • 61
    • 83

    Mostly Sunny

    • 65
    • 82

    Chance Thunderstorms

    • 64
    • 83

    Chance Thunderstorms

    • 65
    • 85

    Chance Thunderstorms

    • 65
    • 84

    Chance Thunderstorms

Today 5 Jul Worth

Showers and Thunderstorms likely. Near steady temperature in the mid 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 5 Jul Worth

Mostly cloudy with Showers with Thunderstorms likely in the Evening, then partly cloudy after midnight. Humid with Lows in the mid 60s. Northwest Winds 5 to 10 Mph. Chance of rain 90 percent.

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Grafton Temperature Statistics

July Temperature

Mason City Municipal Airport (17.4 miles)

  • Lowest 1 July, 2025

    61 °F

  • Average July

    75.1 °F

  • Highest 3 July, 2025

    91.9 °F

Climate (2020–Present)

Mason City Municipal Airport (17.4 miles)

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  • Average Low 2020–2025

    36.9 °F

  • Average 2020–2025

    47.6 °F

  • Average High 2020–2025

    58.2 °F
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