Derwood Weather Forecast

    • 71
    • 87

    Partly Sunny

    • 66
    • 86

    Rain Showers Likely

    • 63
    • 81

    Slight Chance Rain Showers

    • 67
    • 80

    Chance Rain Showers

    • 67
    • 82

    Slight Chance Thunderstorms

    • 65
    • 85

    Slight Chance Thunderstorms

Today 9 Sep Central and Southeast Montgomery

Mostly sunny. Highs in the upper 80s. Southwest Winds 5 to 10 Mph.

Tonight 9 Sep Central and Southeast Montgomery

Partly cloudy in the Evening, then becoming mostly clear. Lows in the lower 70s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Derwood Temperature Statistics

September Temperature

Gaithersburg - Montgomery County Airport (3.1 miles)

  • Lowest 6 September, 2026

    59 °F

  • Average September

    75.8 °F

  • Highest 1 September, 2026

    93.9 °F

Climate (2021–2026)

Gaithersburg - Montgomery County Airport (3.1 miles)

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

  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    56 °F

  • Average High 2021–2026

    65.9 °F
Get WillyWeather+ to remove ads