Grafton Weather Forecast

    • 55
    • 77

    Patchy Smoke

    • 53
    • 74

    Mostly Sunny

    • 58
    • 78

    Partly Sunny

    • 59
    • 77

    Partly Sunny

    • 67
    • 85

    Mostly Sunny

    • 67
    • 91

    Mostly Sunny

Today 21 Jul Worth

Mostly sunny. Patchy smoke this afternoon. Cooler with Highs in the mid 70s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 21 Jul Worth

Patchy smoke in the evening. Mostly clear. Lows in the mid 50s. North Winds 10 to 15 Mph.

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Grafton Temperature Statistics

July Temperature

Mason City Municipal Airport (17.4 miles)

  • Lowest 19 July, 2026

    59 °F

  • Average July

    75.4 °F

  • Highest 16 July, 2026

    90.6 °F

Climate (2021–2026)

Mason City Municipal Airport (17.4 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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