Windsor Lake Weather Forecast

    • 45
    • 76

    Increasing Clouds

    • 49
    • 66

    Chance Rain Showers

    • 51
    • 60

    Rain

    • 46
    • 62

    Chance Rain Showers

    • 43
    • 57

    Chance Rain Showers

    • 44
    • 59

    Chance Rain Showers

Today 18 Sep Western Ulster

Sunny. Highs in the lower 70s. North Winds 5 to 10 Mph.

Tonight 18 Sep Western Ulster

Partly cloudy in the Evening, then becoming mostly cloudy. Much cooler with Lows in the lower 40s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Windsor Lake Temperature Statistics

September Temperature

Monticello, Sullivan County International Airport (16.2 miles)

  • Lowest 15 September, 2026

    42.1 °F

  • Average September

    64.6 °F

  • Highest 3 September, 2026

    81 °F

Climate (2021–2026)

Monticello, Sullivan County International Airport (16.2 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    45.9 °F

  • Average High 2021–2026

    55.2 °F
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