Colchester Weather Forecast

    • 17
    • 24

    Increasing Clouds

    • 21
    • 35

    Mostly Cloudy

    • 11
    • 33

    Snow Showers Likely

    • -1
    • 19

    Slight Chance Snow Showers

    • 19
    • 27

    Chance Snow Showers

    • 27
    • 37

    Rain/Snow

Today 5 Dec Delaware

Partly sunny. Highs in the mid 20s. South Winds 5 to 10 Mph.

Tonight 5 Dec Delaware

Partly cloudy in the Evening, then becoming mostly cloudy. Lows near 15. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Colchester Temperature Statistics

December Temperature

Monticello, Sullivan County International Airport (34.8 miles)

  • Lowest 3 December, 2025

    18 °F

  • Average December

    27.4 °F

  • Highest 1 December, 2025

    35.1 °F

Climate (2020–Present)

Monticello, Sullivan County International Airport (34.8 miles)

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  • Average Low 2020–2025

    36.8 °F

  • Average 2020–2025

    46 °F

  • Average High 2020–2025

    55.3 °F
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