Mason City Weather Forecast

    • 58
    • 73

    Increasing Clouds

    • 61
    • 78

    Chance Thunderstorms

    • 61
    • 81

    Chance Thunderstorms

    • 50
    • 75

    Mostly Sunny

    • 55
    • 75

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

Today 8 May Jefferson

Mostly sunny. Highs in the lower 70s. East Winds around 5 Mph, becoming south in the afternoon.

Tonight 8 May Jefferson

Partly cloudy. Lows around 50. Light and variable Winds.

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  • Temperature Real-Time

Mason City Temperature Statistics

May Temperature

Birmingham, Birmingham International Airport (8.7 miles)

  • Lowest 3 May, 2026

    41.6 °F

  • Average May

    62.1 °F

  • Highest 4 May, 2026

    80.7 °F

Climate (2021–Present)

Birmingham, Birmingham International Airport (8.7 miles)

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  • Average Low 2021–2026

    55.5 °F

  • Average 2021–2026

    65.4 °F

  • Average High 2021–2026

    76 °F
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