Alder Lake Weather Forecast

    • 24
    • 38

    Mostly Cloudy

    • 15
    • 32

    Chance Snow Showers

    • 24
    • 43

    Mostly Sunny

    • 34
    • 51

    Partly Sunny

    • 42
    • 62

    Mostly Cloudy

    • 37
    • 58

    Slight Chance Rain Showers

Today 6 Apr Western Ulster

Mostly sunny. Highs in the mid 40s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 6 Apr Western Ulster

Mostly cloudy with a 40 percent chance of snow Showers. Cold with Lows in the upper 20s. West Winds 5 to 10 Mph.

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  • Temperature Real-Time

Alder Lake Temperature Statistics

April Temperature

Monticello, Sullivan County International Airport (24.9 miles)

  • Lowest 3 April, 2026

    36 °F

  • Average April

    47.7 °F

  • Highest 3 April, 2026

    68 °F

Climate (2021–Present)

Monticello, Sullivan County International Airport (24.9 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    45.7 °F

  • Average High 2021–2026

    55.1 °F
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