Alton Weather Forecast

    • 37
    • 73

    Rain Showers

    • 30
    • 46

    Chance Rain/Snow

    • 29
    • 40

    Partly Sunny

    • 39
    • 55

    Slight Chance Rain Showers

    • 37
    • 53

    Partly Sunny

    • 43
    • 58

    Partly Sunny

Today 18 Apr Wayne

Mostly sunny through early Afternoon, then mostly cloudy with a chance of Showers late. Warm with Highs Ranging from around 70 along the lake Ontario shore to the mid 70s inland. South Winds 10 to 20 Mph with Gusts up to 35 Mph. Chance of rain 50 percent.

Tonight 18 Apr Wayne

Showers. Locally heavy rainfall possible in the evening. Cooler with Lows in the upper 30s. Southwest Winds 10 to 20 Mph with Gusts up to 30 Mph, becoming northwest 5 to 10 Mph. Chance of rain 90 percent.

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Alton Temperature Statistics

April Temperature

Fulton, Oswego County Airport (32.9 miles)

  • Lowest 8 April, 2026

    15.1 °F

  • Average April

    45.2 °F

  • Highest 3 April, 2026

    77 °F

Climate (2021–Present)

Fulton, Oswego County Airport (32.9 miles)

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  • Average Low 2021–2026

    40.8 °F

  • Average 2021–2026

    49.4 °F

  • Average High 2021–2026

    58.1 °F
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