Lisbon Weather Forecast

    • 20
    • 29

    Increasing Clouds

    • 23
    • 41

    Chance Flurries

    • 20
    • 39

    Mostly Cloudy

    • 10
    • 30

    Mostly Sunny

    • 25
    • 35

    Mostly Cloudy

    • 35
    • 47

    Chance Rain/Snow

Today 5 Dec Northern New London

Sunny. Highs around 30. Northeast Winds around 5 Mph, becoming south this afternoon.

Tonight 5 Dec Northern New London

Mostly cloudy. A slight chance of light snow after midnight. Lows in the lower 20s. Light and variable Winds, becoming northeast around 5 Mph after midnight. Chance of snow 20 percent.

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Lisbon Temperature Statistics

December Temperature

Willimantic, Windham Airport (13 miles)

  • Lowest 1 December, 2025

    21 °F

  • Average December

    32.9 °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

    61.8 °F
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