Gaithersburg Weather Forecast

    • 55
    • 77

    Decreasing Clouds

    • 61
    • 81

    Partly Sunny

    • 63
    • 85

    Chance Thunderstorms

    • 65
    • 85

    Partly Sunny

    • 56
    • 82

    Chance Rain Showers

    • 53
    • 75

    Mostly Sunny

Today 2 Sep Central and Southeast Montgomery

Mostly sunny. Highs in the upper 70s. Northeast Winds around 5 Mph.

Tonight 2 Sep Central and Southeast Montgomery

Partly cloudy in the Evening, then becoming mostly clear. Lows in the mid 50s. East Winds around 5 Mph in the Evening, becoming light and variable.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Gaithersburg Temperature Statistics

September Temperature

Gaithersburg - Montgomery County Airport (2.5 miles)

  • Lowest

    –

  • Average September

    –

  • Highest

    –

Climate (2020–Present)

Gaithersburg - Montgomery County Airport (2.5 miles)

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

  • Average Low 2020–2025

    46.4 °F

  • Average 2020–2025

    56.1 °F

  • Average High 2020–2025

    65.9 °F
Get WillyWeather+ to remove ads