Mason City Weather Forecast

    • 78
    • 98

    Hot

    • 76
    • 99

    Hot

    • 75
    • 97

    Chance Thunderstorms

    • 76
    • 97

    Mostly Sunny

    • 74
    • 97

    Chance Thunderstorms

    • 72
    • 93

    Slight Chance Thunderstorms

Today 16 Aug Jefferson

Sunny, hot with Highs in the upper 90s. Northwest Winds around 5 Mph. Heat index Values up to 106.

Tonight 16 Aug Jefferson

Mostly clear. Lows in the upper 70s. Southwest Winds around 5 Mph. Heat index Values up to 105 early in the evening.

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Mason City Temperature Statistics

August Temperature

Birmingham, Birmingham International Airport (8.7 miles)

  • Lowest 4 August, 2026

    70.6 °F

  • Average August

    83 °F

  • Highest 13 August, 2026

    96.7 °F

Climate (2021–2026)

Birmingham, Birmingham International Airport (8.7 miles)

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  • Average Low 2021–2026

    55.6 °F

  • Average 2021–2026

    65.7 °F

  • Average High 2021–2026

    76.2 °F
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