Lisbon Weather Forecast

    • 48
    • 66

    Slight Chance Rain

    • 47
    • 67

    Mostly Cloudy

    • 48
    • 65

    Chance Rain Showers

    • 49
    • 63

    Chance Rain Showers

    • 50
    • 64

    Chance Rain Showers

    • 50
    • 66

    Chance Rain Showers

Today 22 Sep Northern New London

Mostly cloudy this Morning, then becoming partly sunny. Highs in the mid 60s. Northeast Winds 10 to 15 Mph.

Tonight 22 Sep Northern New London

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the upper 40s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lisbon Temperature Statistics

September Temperature

Willimantic, Windham Airport (13 miles)

  • Lowest 15 September, 2026

    45 °F

  • Average September

    65.6 °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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