Lisbon Weather Forecast

    • 50
    • 71

    Mostly Sunny

    • 59
    • 75

    Partly Sunny

    • 64
    • 79

    Chance Rain Showers

    • 50
    • 79

    Partly Sunny

    • 54
    • 71

    Chance Rain Showers

    • 57
    • 75

    Chance Rain Showers

Today 15 Sep Northern New London

Sunny. Highs around 70. Northeast Winds around 5 Mph, becoming southeast around 5 Mph this afternoon.

Tonight 15 Sep Northern New London

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. South Winds around 5 Mph.

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Lisbon Temperature Statistics

September Temperature

Willimantic, Windham Airport (13 miles)

  • Lowest 12 September, 2026

    48 °F

  • Average September

    66.7 °F

  • Highest 10 September, 2026

    84 °F

Climate (2021–2026)

Willimantic, Windham Airport (13 miles)

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  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.6 °F
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