North Branch Weather Forecast

    • 65
    • 89

    Becoming Sunny

    • 66
    • 89

    Partly Sunny

    • 44
    • 82

    Rain Showers

    • 42
    • 64

    Partly Sunny

    • 45
    • 63

    Rain Showers Likely

    • 49
    • 62

    Rain Showers Likely

Today 18 May Sullivan

Mostly sunny. Highs around 90. Southeast Winds around 5 Mph, becoming southwest with Gusts up to 20 Mph this afternoon.

Tonight 18 May Sullivan

Mostly clear. Lows in the mid 60s. Southwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

North Branch Temperature Statistics

May Temperature

Monticello, Sullivan County International Airport (11.8 miles)

  • Lowest 4 May, 2026

    30.9 °F

  • Average May

    50.7 °F

  • Highest 5 May, 2026

    78.1 °F

Climate (2021–Present)

Monticello, Sullivan County International Airport (11.8 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    45.7 °F

  • Average High 2021–2026

    55 °F
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