Trojan Lake Weather Forecast

    • 35
    • 60

    Sunny

    • 34
    • 62

    Mostly Sunny

    • 29
    • 53

    Mostly Sunny

    • 37
    • 54

    Partly Sunny

    • 43
    • 62

    Partly Sunny

    • 41
    • 63

    Partly Sunny

Today 25 Oct Sullivan

Sunny. Highs in the mid 60s. Northwest Winds around 5 Mph, becoming southwest in the afternoon.

Tonight 25 Oct Sullivan

Mostly clear. Patchy fog after midnight. Lows in the lower 30s. West Winds around 5 Mph.

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Trojan Lake Temperature Statistics

October Temperature

Monticello, Sullivan County International Airport (15.5 miles)

  • Lowest 18 October, 2026

    26.1 °F

  • Average October

    53.1 °F

  • Highest 2 October, 2026

    79 °F

Climate (2021–2026)

Monticello, Sullivan County International Airport (15.5 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    45.8 °F

  • Average High 2021–2026

    55.1 °F
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