Sylvan Lake Weather Forecast

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    • 67

    Chance Rain Showers

    • 47
    • 71

    Chance Rain Showers

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    • 58

    Rain Showers

    • 52
    • 65

    Chance Rain Showers

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    • 75

    Chance Rain Showers

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    • 80

    Partly Sunny

Today 21 May Eastern Dutchess

Mostly cloudy. Much cooler with Highs in the mid 60s. North Winds 5 to 10 Mph.

Tonight 21 May Eastern Dutchess

Partly cloudy in the Evening, then clearing. Lows in the lower 40s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sylvan Lake Temperature Statistics

May Temperature

Poughkeepsie, Dutchess County Airport (7.5 miles)

  • Lowest 3 May, 2026

    34.6 °F

  • Average May

    57.7 °F

  • Highest 18 May, 2026

    91 °F

Climate (2021–Present)

Poughkeepsie, Dutchess County Airport (7.5 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    63 °F
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