Lisbon Weather Forecast

    • 33
    • 41

    Increasing Clouds

    • 21
    • 45

    Partly Sunny

    • 28
    • 38

    Mostly Cloudy

    • 35
    • 45

    Mostly Cloudy

    • 33
    • 47

    Mostly Cloudy

    • 46
    • 53

    Slight Chance Rain

Today 20 Dec Northwest Howard

Mostly sunny. Highs in the lower 40s. West Winds around 5 Mph, becoming south in the afternoon.

Tonight 20 Dec Northwest Howard

Partly cloudy. Lows in the mid 20s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lisbon Temperature Statistics

December Temperature

Gaithersburg - Montgomery County Airport (12.4 miles)

  • Lowest 16 December, 2025

    10.9 °F

  • Average December

    31 °F

  • Highest 17 December, 2025

    46.9 °F

Climate (2020–Present)

Gaithersburg - Montgomery County Airport (12.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    56 °F

  • Average High 2020–2025

    65.9 °F
Get WillyWeather+ to remove ads