Gaithersburg Weather Forecast

    • 70
    • 87

    Rain Showers

    • 67
    • 83

    Thunderstorms

    • 69
    • 82

    Mostly Cloudy

    • 70
    • 83

    Rain Showers Likely

    • 64
    • 83

    Chance Thunderstorms

    • 64
    • 80

    Partly Sunny

Today 18 Aug Central and Southeast Montgomery

Cloudy. Scattered Showers with isolated Thunderstorms in the Morning, then numerous Showers and scattered Thunderstorms in the afternoon. Highs in the upper 80s. West Winds 5 to 10 Mph. Chance of rain 60 percent.

Tonight 18 Aug Central and Southeast Montgomery

Mostly cloudy with scattered Showers and Thunderstorms. Lows in the lower 70s. Southwest Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gaithersburg Temperature Statistics

August Temperature

Gaithersburg - Montgomery County Airport (2.5 miles)

  • Lowest 14 August, 2018

    64 °F
  • Average August

    75.7 °F
  • Highest 5 August, 2018

    91.9 °F

Climate (2010–Present)

Gaithersburg - Montgomery County Airport (2.5 miles)

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  • Average Low 2010–Present

    44.9 °F
  • Average 2010–Present

    54.8 °F
  • Average High 2010–Present

    64.5 °F
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