Harvard Weather Forecast

    • 56
    • 75

    Increasing Clouds

    • 65
    • 78

    Mostly Cloudy

    • 52
    • 74

    Chance Rain Showers

    • 48
    • 68

    Mostly Sunny

    • 57
    • 73

    Mostly Cloudy

    • 56
    • 75

    Chance Rain Showers

Today 8 Sep Delaware

Patchy fog in the morning. Partly sunny. Highs in the mid 70s. Northwest Winds around 5 Mph.

Tonight 8 Sep Delaware

Partly cloudy. Patchy fog. Lows around 50. Light and variable Winds.

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Harvard Temperature Statistics

September Temperature

Monticello, Sullivan County International Airport (27.3 miles)

  • Lowest 5 September, 2026

    57.9 °F

  • Average September

    67.5 °F

  • Highest 3 September, 2026

    81 °F

Climate (2021–2026)

Monticello, Sullivan County International Airport (27.3 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    45.8 °F

  • Average High 2021–2026

    55.1 °F
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