Alto Weather Forecast

    • 43
    • 68

    Partly Sunny

    • 49
    • 68

    Partly Sunny

    • 49
    • 71

    Mostly Sunny

    • 55
    • 70

    Chance Rain Showers

    • 55
    • 67

    Chance Rain Showers

    • 49
    • 68

    Chance Rain Showers

Today 26 Sep Fond Du Lac

Partly sunny. Patchy fog in the morning. Highs in the upper 60s. Southeast Winds up to 10 Mph.

Tonight 26 Sep Fond Du Lac

Partly cloudy until early morning then becoming mostly cloudy. Lows in the mid 40s. Southeast Winds up to 5 Mph through around midnight becoming calm.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alto Temperature Statistics

September Temperature

Fond Du Lac County Airport (16.2 miles)

  • Lowest 14 September, 2026

    39.7 °F

  • Average September

    64.9 °F

  • Highest 1 September, 2026

    90.6 °F

Climate (2021–2026)

Fond Du Lac County Airport (16.2 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    48.9 °F

  • Average High 2021–2026

    58.2 °F
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