Harvard Weather Forecast

    • 46
    • 64

    Patchy Fog

    • 54
    • 70

    Mostly Cloudy

    • 58
    • 74

    Partly Sunny

    • 50
    • 74

    Chance Rain Showers

    • 45
    • 65

    Chance Rain Showers

    • 43
    • 63

    Chance Rain Showers

Today 29 Sep Delaware

Patchy fog late this morning. Mostly cloudy. Highs in the mid 60s. Northwest Winds around 5 Mph.

Tonight 29 Sep Delaware

Partly cloudy. Patchy fog. Lows in the mid 40s. Northwest Winds around 5 Mph in the Evening, becoming light and variable.

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Harvard Temperature Statistics

September Temperature

Monticello, Sullivan County International Airport (27.3 miles)

  • Lowest 24 September, 2026

    39.9 °F

  • Average September

    62 °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

    45.9 °F

  • Average High 2021–2026

    55.1 °F
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