Alto Weather Forecast

    • 45
    • 61

    Decreasing Clouds

    • 46
    • 64

    Partly Sunny

    • 47
    • 65

    Mostly Cloudy

    • 45
    • 67

    Mostly Cloudy

    • 47
    • 66

    Slight Chance Rain Showers

    • 50
    • 66

    Mostly Cloudy

    • 52
    • 70

    Partly Sunny

Today 22 Sep Fond Du Lac

Mostly cloudy with a 40 percent chance of light rain Showers. Highs in the upper 60s.

Tonight 22 Sep Fond Du Lac

Mostly clear. Lows in the upper 40s. Northeast Winds up to 10 Mph.

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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

    66.2 °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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