Lisbon Weather Forecast

    • 8
    • 28

    Becoming Sunny

    • 27
    • 30

    Mostly Cloudy

    • 30
    • 47

    Rain Likely

    • 21
    • 39

    Chance Snow

    • 21
    • 36

    Chance Snow

    • 17
    • 34

    Slight Chance Snow

Today 8 Dec Northern New London

Mostly sunny. Cold with Highs in the upper 20s. North Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 8 Dec Northern New London

Partly cloudy in the Evening, then clearing. Colder with Lows around 9 above. North Winds around 5 Mph.

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Lisbon Temperature Statistics

December Temperature

Willimantic, Windham Airport (13 miles)

  • Lowest 5 December, 2025

    10.9 °F
  • Average December

    29 °F
  • Highest 1 December, 2025

    42.1 °F

Climate (2020–Present)

Willimantic, Windham Airport (13 miles)

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  • Average Low 2020–2025

    41.7 °F
  • Average 2020–2025

    51.7 °F
  • Average High 2020–2025

    61.7 °F
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