Mason City Weather Forecast

    • 56
    • 81

    Mostly Sunny

    • 52
    • 76

    Mostly Sunny

    • 61
    • 81

    Mostly Sunny

    • 65
    • 87

    Partly Sunny

    • 66
    • 88

    Partly Sunny

    • 69
    • 90

    Partly Sunny

Today 13 May Jefferson

Sunny. Highs in the lower 80s. West Winds 5 to 10 Mph.

Tonight 13 May Jefferson

Mostly clear. Near steady temperature in the upper 50s. Southeast Winds around 5 Mph.

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Mason City Temperature Statistics

May Temperature

Birmingham, Birmingham International Airport (8.7 miles)

  • Lowest 3 May, 2026

    41.6 °F

  • Average May

    64.8 °F

  • Highest 10 May, 2026

    82.9 °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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