Alto Weather Forecast

    • 63
    • 80

    Rain Showers

    • 42
    • 73

    Chance Rain Showers

    • 37
    • 60

    Partly Sunny

    • 41
    • 62

    Mostly Cloudy

    • 46
    • 67

    Slight Chance Rain Showers

    • 50
    • 72

    Slight Chance Thunderstorms

Today 18 May Fond Du Lac

Warmer. Mostly cloudy with a 50 percent chance of Showers and Thunderstorms. Highs around 80. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 18 May Fond Du Lac

Mostly cloudy with a 50 percent chance of Showers and Thunderstorms. Lows in the mid 50s. South Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alto Temperature Statistics

May Temperature

Fond Du Lac County Airport (16.2 miles)

  • Lowest 2 May, 2026

    28.7 °F

  • Average May

    49.9 °F

  • Highest 15 May, 2026

    78.1 °F

Climate (2021–Present)

Fond Du Lac County Airport (16.2 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    49.2 °F

  • Average High 2021–2026

    58.5 °F
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